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HSC Guide

The document appears to be a chemistry-related text containing various chemical equations, reactions, and experimental setups. It includes questions and prompts related to chemical properties, reactions, and calculations. The content is structured in a way that suggests it is meant for educational purposes, possibly for students studying chemistry.

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0% found this document useful (0 votes)

35 views82 pages

HSC Guide

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mamuncse64

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1

wØZxq cÎ

†evW© cixÿvi cÖkœcÎ

XvKv †evW© 2023 welq †KvW : 1 7 7

ˆmU : 02 mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Yg© vb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM w`‡q co Ges mswkøó cÖk¸ œ ‡jvi DËi `vI|
†h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} M. DÏxc‡Ki A †Kv¤úvwb‡Z e¨en„Z wewµqvwU Avqb-B‡jKUªb
B(g) c×wZ‡Z mgZv weavb Ki| 3
C(g)
N. DÏxc‡Ki †Kvb †Kv¤úvwbi AvKwiK n‡Z Avqib Drcv`b
PV A(g)
L. atm
†ewk jvfRbK n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
5 } (i) NH4Cl + CaO ® A(gas) + CaCl2 + H2O
P atm (ii) CH3OH + PCl5 ® CH3Cl + POCl3 + B(gas)

K. jyKvm weKviK Kx? 1

L. Pvj©‡mi m~Î †_‡K ZvcgvÎv cÖKv‡ki bZzb †¯‹j cÖwZôv Ki| 2
M. A M¨v‡mi Ae¯’vi mgxKiY cÖwZôv Ki| 3 K. R.M.S Kx? 1
N. DÏxc‡Ki B I C M¨v‡mi Av`k© AvPiY bv Kivi KviY L. Kxfv‡e > C = O g~jK‡K - CH2 - (wgw_wjb) g~j‡K
mgxKiYmn we‡kølY Ki| 4 cwiYZ Kiv hvq? 2
2} M. DÏxc‡Ki M¨vmØq ci¯úi KZ `~i‡Z¡ ci¯úi wgwjZ n‡e? 3
N. DÏxc‡Ki M¨vmØq‡K †Kvb gZev` Abymv‡i A¤ø-ÿviK
wnmv‡e e¨vL¨v Kiv hvq? we‡kølY Ki| 4
K. GwmW e„wó Kx? 1 H2
6} CaC2 + H2O ® A ¾¾¾¾¾® B
L. ˆRe †hŠ‡M -COOH g~j‡Ki Dcw¯’wZ kbv³Ki‡Yi cixÿv Pd - BaSO4
mgxKiYmn †jL| 2 K. RviY msL¨v Kx? 1
M. DÏxc‡Ki C †hŠ‡Mi bvB‡Uªk‡b cÖwZ¯’vcK A‡_©v-c¨viv L. †gvjvwiwU ZvcgvÎvi Dci wbf©ikxj- e¨vL¨v Ki| 2
Ae¯’v‡b hy³ nq bv †Kb? e¨vL¨v Ki| 3 M. DÏxc‡Ki A †hŠ‡Mi cwjgviKi‡Y Drcbœ †hŠMwUi
N. DÏxc‡Ki A, B I C †hŠ‡Mi †ÿ‡Î B‡jKUªbvKlx© Am¤ú„³Zv B †hŠ‡Mi gZ bq †Kb? e¨vL¨v Ki| 3
cÖwZ¯’vcb wewµqvi mwµqZvi µg we‡kølY Ki| 4 N. DÏxc‡Ki A I B †hŠ‡Mi g‡a¨ †KvbwU A¤øagx©
3} mgxKiYmn we‡kølY Ki| 4
7}
250 ml 0.5 M
ZnSO4 E°Zn/Zn2+ = 0.76 V, E°Al/Al3+ = 1.66 V
200 ml 0.2 M 130 mL
`ªeY H2C2O4 KOH
`ªeY `ªeY
K. Zwor ivmvqwbK mvwi Kx? 1
cvÎ-A cvÎ-B
L. gviKwbKf Gi bxwZ e¨vL¨v Ki| 2
M. DÏxc‡Ki `ªeY Al-avZzi cv‡Î msiÿY Kiv hv‡e wKbv? K. †iwmwgK wgkÖY Kx? 1
we‡kølY Ki| 3 L. 5 †gvj wPwb I 10 †gvj H2O Gi wgkÖ‡Y wPwbi †gvj
N. DÏxc‡Ki `ªe‡Yi g‡a¨ 2.5 amp we`y¨r 1 NÈv hver Pvjbv fMœvsk KZ? 2
Kiv nj| Zwor we‡køl‡Yi ci `ªe‡Yi NbgvÎv KZ n‡e? M. DÏxc‡Ki B-cv‡Îi `ªeY‡K m¤ú~Yi© ƒ‡c cÖkwgZ Ki‡Z A-
MvwYwZKfv‡e we‡kølY Ki| 4 cv‡Îi m¤ú~Y© `ªe‡Yi cÖ‡qvRb n‡j `ªe‡Y `ªexf‚Z KOH
4} Gi cwigvY wbY©q Ki| 3
N. cvÎ-A Gi `ªeY‡K cvÎ B Gi `ªeY Øviv UvB‡UªU Ki‡Z †Kvb
†Kv¤úvwbi bvg †jvnvi AvKwi‡K UvB‡Uªk‡bi UvB‡Uªk‡b
wb‡`©kK Dc‡hvMx? wb‡`©kK †jLwP‡Îi mvnv‡h¨ e¨vL¨v Ki| 4
AvKwi‡Ki H 2SO 4 GwmW Rb¨ M„nxZ e¨en„Z weKviK O3 HO 2
cwigvY †hvM Kivi ci `ªe‡Yi cwigvY 8} CnH2n ¾¾® AšÍe©Zx© †hŠM ¾¾® A +B
n=3 CCl Zn
A-GK Kve©bwewkó
4
cÖvß `ªeY Kve©wbj †hŠM
A 10 g 1L 25 mL 4 mL 0.1 M
K. wb‡`©kK ZworØvi Kx? 1
KMnO 4
B 10 g 1L 25 mL 12 mL 0.02 M L. H2 ODfagx© †hŠM- e¨vL¨v Ki| 2
K 2Cr2O 7 M. A †hŠ‡Mi kbv³KiY cixÿv mgxKiYmn wjL| 3
K. BOD Kx? 1 N. A I B †hŠ‡Mi g‡a¨ †KvbwU n¨v‡jvdg© wewµqv cÖ`k©b
L. †`LvI †h, Zwor we‡kølY GKwU RviY weRviY cÖwµqv| 2 K‡i- we‡kølY Ki| 4
3

†mU : 02 ivRkvnx †evW© 2023 welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} K. U‡UvgvwiRg Kx? 1
L. NaCl Gi Rjxq `ªe‡Yi cÖKw… Z e¨vL¨v Ki| 2
M. 27 °C ZvcgvÎvq 11g B M¨v‡mi MwZkw³ wbY©q Ki| 3
N. A M¨vm †_‡K B, C I D M¨v‡mi wePz¨wZi KviY e¨vL¨v
K. wb‡`©kK ZworØvi Kx? 1 Ki| 4
L. HCO3- Avqb Dfagx©-e¨vL¨v Ki| 2 6}
M. B †hŠ‡Mi mv‡_ dzUšÍ Ae¯’vq †K¬vwi‡bi wewµqv
mgxKiYmn eY©bv Ki| 3
N. A I C †hŠ‡Mi cvi¯úwiK iƒcvšÍi †jL| 4
2} A = C4 H 9 X
4.9% 100 mL M = 3 Kve©bwewkó Kve©wbj †hŠM hv U‡jb weKviK‡K weRvwiZ
50 ml H2SO4 †Wwm‡gvjvi K‡i bv|
`ªeY NaOH `ªeY
K. RviY msL¨v Kv‡K e‡j? 1
A-cvÎ B-cvÎ L. †K¬v‡ivdig‡K iwOb Kv‡Pi †evZ‡j ivLv nq †Kb? 2
K. †gvj fMœvsk Kv‡K e‡j? 1 M. wMÖMbvW© weKviK †_‡K DÏxc‡Ki P †hŠMwU Kxfv‡e cÖ¯Z
‘
L. gy³g~jK AwaK mwµq †Kb? e¨vL¨v Ki| 2 Ki‡e? wewµqvmn eY©bv Ki| 3
M. A `ªeY‡K B `ªeY Øviv UvB‡Uªkb Ki‡Z Dchy³ wb‡`©kK N. †K›`ªvKlx© ms‡hvRb wewµqvq M I N Gi g‡a¨ †KvbwU
Kx? †jLwP‡Îi gva¨‡g e¨vL¨v Ki| 3 AwaK mwµq? KviYmn e¨vL¨v Ki| 4
N. A Ges B `ªeY wgwkÖZ Ki‡j wgkÖ‡Yi cÖKw… Z Kxiƒc n‡e Zv 7}
pH MYbvi gva¨‡g we‡kølY Ki| 4
0.5 M
3}
t = 2 NÈv NH3 HCl
I = 2.5 A
25 °C
- +
X A Y
0.5 M 0.2 M
500 ml M1 M1SO 4 M2SO4 M2
1M `Ð `Ð K. e.m.f Gi msÁv `vI| 1
Ni(NO3)2 `ªeY `ªeY
`ªeY L. A¨vjKvBb-2 A¤øagx© bq †Kb? 2
A-cvÎ B-cvÎ M. A Gi Ae¯’vb 'X' Ges 'Y' cÖv‡šÍi †KvbwUi wbKU n‡e Zv
K. GbvbwmIgvi Kx? 1 †hŠw³K e¨vL¨v `vI| 3
L. S.I GK‡K R Gi gvb †ei Ki| 2 N. DÏxc‡Ki †hŠM `yBwUi g‡a¨ GKwU jyBm ÿviK wn‡m‡e
M. we`y¨r cÖev‡ni c‡i A cv‡Îi `ªe‡Yi cwiewZ©Z NbgvÎv wbY©q Ki| 3 KvR Ki‡jI AciwU jyBm GwmW wn‡m‡e KvR K‡i bv
N. †Kvl wewµqv D‡jøLc~eK © B †Kv‡li e.m.f wbY©q Ki| 4 †Kb? e¨vL¨v Ki| 4
4} (i) A + Br2 + KOH ® X + KBr + K2CO3 + H2O
8}
(ii) B + Br2 + KOH ® Y + KBr + K2CO3 + H2O
[A I B h_vµ‡g A¨vwj‡dwUK I A¨v‡iv‡gwUK A¨vgvBW] †Kv¤úvwbi †jvnvi AvKwi‡K UvB‡Uªk‡bi UvB‡Uªk‡b
K. COD Kx? 1 bvg AvKwi‡Ki H 2SO4 GwmW Rb¨ M„nxZ e¨en„Z weKviK
cwigvY †hvM Kivi ci `ªe‡Yi cwigvY
L. 10% ( ) H SO `ªe‡Yi †gvjvwiwU KZ?
w
V 2 4 2 cÖvß `ªeY
M. X I Y †hŠ‡Mi g‡a¨ †KvbwUi ÿviKZ¡ †ewk? KviYmn A 10 g 1L 25 mL 4 mL 0.1 M
e¨vL¨v Ki| 3 KMnO 4
N. Y †hŠ‡Mi cÖwZ¯’vcK MÖæcwU A‡_©v-c¨viv wb‡`©kK nIqv m‡Ë¡I B 10 g 1L 25 mL 12 mL 0.02 M
K 2Cr2O 7
Dnvi bvB‡Uªkb †gUv Ae¯’v‡b N‡U †Kb? e¨vL¨v Ki| 4
5} K. jyKvm weKviK Kx? 1
C
B L. wmjfv‡ii Zwor ivmvqwbK Zzj¨v¼ 0.001118gC-1 ej‡Z Kx eyS ? 2
D [B M¨vmwU Pzbvcv_‡ii M. DÏxc‡Ki A †Kv¤úvwb‡Z e¨en„Z wewµqvwU Avqb-B‡jKUªb
PV

A
we‡qvR‡b m„wó]
c×wZ‡Z mgZv weavb Ki| 3
N. DÏxc‡Ki †Kvb †Kv¤úvwbi AvKwiK n‡Z Avqib Drcv`b
P †ewk jvfRbK n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
4

†mU : 02 h‡kvi †evW© 2023 welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} 5}
Q M¨vm
Ni KNO3
PV R M¨vm `Ð Ag
`Ð
NiSO4 AgNO3
`ªeY `ªeY
P
E°Ag+(aq)/Ag(s) = + 0.799 V; E°Ni2+(aq)/Ni(s) = - 0.25 V;
K. Aa©‡Kvl Kv‡K e‡j? 1
E°Zn2+(aq)/Zn(s) = - 0.76 V;
L. Kvh©Kix g~jKB ˆRe wewµqvi wbqš¿K- e¨vL¨v Ki| 2
K. K¨v‡U‡bkb Kv‡K e‡j? 1
M. DÏxc‡Ki Q M¨v‡mi MwZkw³ 30°C ZvcgvÎvq wbY©q Ki| 3
N. DÏxc‡Ki R I Q M¨vmØ‡qi MÖvdwPÎ wfbœ nIqvi KviY L. 0.01M Na2CO3 `ªeY GKwU cÖgvY `ªeY- e¨vL¨v Ki| 2
hyw³mnKv‡i we‡kølY Ki| 4 M. DÏxc‡Ki †Kv‡l msNwUZ Aa©‡Kvl wewµqv Ges †Kvl
2} wewµqv mgxKiYmn wjL| 3
+ - N. DÏxc‡Ki A¨v‡bv‡Wi `ªeYwU‡K `xN©Kvj Zn cv‡Î msiÿY
+ -
Kiv hv‡e wKbv? MvwYwZKfv‡e we‡kølY Ki| 4
MÖvdvBU Ag `Ð
`Ð AgNO3 6}
`ªeY I = 8A we`y¨r
t = 20 wgwbU
50 mL 24 mL
K. AvswkK Pvc Kv‡K e‡j? 1 0.1 M 30 mL A¤øxq
L. K4[Fe(CN)6] †hŠ‡Mi †K›`ªxq cigvYyi RviY msL¨v wbY©q H2C2O4 `ªeY KMnO4 `ªeY FeSO4 `ªeY
Ki| 2 A-`ªeY B-`ªeY C-`ªeY
M. DÏxc‡Ki †Kv‡l Abym„Z d¨viv‡Wi m~Î wee„Z I e¨vL¨v Ki| 3
K. RviY wefe Kv‡K e‡j? 1
N. DÏxc‡Ki †Kv‡l Ag `‡Ê KZwU Ag cigvYy mwÂZ n‡e?
MvwYwZKfv‡e we‡kølY Ki| [Ag Gi cvigvYweK fi = 108 g] 4 L. †gvjvi `ªeY ZvcgvÎvi Dci wbf©ikxj- e¨vL¨v Ki| 2
3} M. DÏxc‡Ki A I B `ªeYØ‡qi A¤øxq wgkÖ‡Y msNwUZ
wewµqv‡K Avqb B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
N. DÏxc‡Ki A I B `ªeYØ‡qi mvnv‡h¨ C `ªe‡Y Fe Gi
cwigvY wbY©q Ki| 4
hu KOH(aq)
K. †gvjvwiwU Kv‡K e‡j? 1 7} CnH2n+2 ¾¾® CnH2n+1Cl ¾¾¾¾® R
P Cl2
Q
L. HCO3 Avqb GKwU Dfagx© c`v_©- e¨vL¨v Ki|
-
2 [n = 1]
M. DÏxc‡Ki B †_‡K A Drcv`‡bi wewµqvmg~n mgxKiYmn K. msÁv wjL : wbDwK¬IdvBj| 1
eY©bv Ki| 3
L. Zwor we‡kølY GKwU RviY-weRviY cÖwµqv- e¨vL¨v Ki| 2
N. DÏxc‡Ki A I C †hŠ‡Mi †ÿ‡Î B‡jK‡UªvwdwjK cÖwZ¯’vcb
M. DÏxc‡Ki P †hŠ‡Mi MVb AiweUvj msKi‡Yi Av‡jv‡K eY©bv Ki| 3
wewµqvq cÖwZ¯’vc‡Ki Ae¯’v‡bi wfbœZvi KviY
wµqv‡KŠkjmn we‡kølY Ki| 4 N. DÏxc‡Ki Q †hŠM †_‡K R †hŠM Drcbœ nIqvi wewµqv
4} †KŠkj we‡kølY Ki| 4
8}
20 mL 15 mL
0.2 g 0.5 M
NaOH `ªeY HCl `ªeY

cvÎ-1 cvÎ-2
K. KvBivj Kve©b Kv‡K e‡j? 1 K. wb‡`©kK Kv‡K e‡j? 1
L. Zn B‡jK‡Uªv‡Wi cÖgvY RviY wefe E°Zn/Zn = + 0.76 V
2+ L. B_vBb A¤øagx© c`v_©- e¨vL¨v Ki| 2
ej‡Z Kx eyS? 2 M. DÏxc‡Ki ÷cKK© †Lvjv Ae¯’vq 40 °C ZvcgvÎvq M¨vm
M. DÏxc‡Ki cvÎ-1 Gi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3 wgkÖ‡Yi †gvU Pvc wbY©q Ki| 3
N. DÏxc‡Ki cvÎ-1 I cvÎ-2 Gi `ªeYØ‡qi wgkÖ‡Yi cÖKw… Z N. DÏxc‡Ki M¨vmØ‡qi e¨vcb nv‡ii Zzjbv MvwYwZKfv‡e
Kxiƒc n‡e? MvwYwZKfv‡e we‡kølY Ki| 4 we‡kølY Ki| 4
5

†mU : 02 Kzwgjøv †evW© 2023 welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } wb‡Pi DÏxcK †_‡K cÖkœ¸‡jvi DËi `vI : 5}
0.745 g STP †Z 100 ml
A¤øxq 0.02 M
576 mm(Hg) 0.05 M
NbZ¡ FeSO4 K2Cr2O7
600 mL KMnO4
1.75 gL-1 `ªeY `ªeY
20°C `ªeY
A-M¨vm B-M¨vm A-cvÎ B-cvÎ C-cvÎ
(I) cvÎ (II) cvÎ K. B‡jK‡UªvdvBj Kv‡K e‡j? 1
K. KvBivj Kve©b Kv‡K e‡j? 1 L. B_vBb A¤øagx©- e¨vL¨v Ki| 2
L. †gvjvi `ªe‡Yi NbgvÎv ZvcgvÎv wbf©ikxj- e¨vL¨v Ki| 2 M. DÏxc‡Ki B I C cv‡Îi `ªe‡Yi msNwUZ wewµqv Avqb-
M. 30 °C ZvcgvÎv 2 L AvqZ‡bi cv‡Î A I B M¨vmØq B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
wgwkÖZ Ki‡j, wgkÖ‡Yi †gvU Pvc wbY©q Ki| 3 N. DÏxc‡Ki weRviK c`v_©wU‡K RvwiZ Ki‡Z KZ AvqZb
N. 1 wgUvi ˆ`‡N©¨i KvPb‡ji `yB cÖvšÍ w`‡q A I B M¨vm A-cv‡Îi `ªeY cÖ‡qvRb? MvwYwZKfv‡e we‡kølY Ki| 4
cÖ‡ek Kiv‡j b‡ji wVK †Kvb RvqMvq M¨vm `ywU wgwjZ HBr
6} 1. 2-wg_vBj weDwUb-1 ¾¾® A(90%) + B(10%)
n‡e? MvwYwZKfv‡e we‡kølY Ki| 4 (gyL¨ Drcv`) (†MŠY Drcv`)
Zn dust bvB‡Uªkb Sn + HCl NaOH(aq)
2} C6H5OH ¾¾¾¾® A ¾¾¾¾® B ¾¾¾¾® C 2. A †hŠM ¾¾¾¾® C †hŠM
K. ev¯Íe M¨vm Kv‡K e‡j? 1 K. cvwbi DO Kv‡K e‡j? 1
L. Fe3+
Avqb GKwU RviK c`v_©- e¨vL¨v Ki| 2 L. Kcv‡ii Zwor ivmvqwbK Zzj¨v¼ 0.000329 gC ej‡Z Kx
-1

M. A †_‡K B ˆZwii †KŠkj e¨vL¨v Ki| 3 eyS? 2

N. B‡jK‡UªvwdwjK cÖwZ¯’vcb wewµqvq B I C †hŠ‡Mi M. DÏxc‡Ki A †hŠM †_‡K C-†hŠMwU Drcv`‡bi †KŠkj
mwµqZvi µg we‡kølY Ki| 4 †`LvI| 3
3} N. DÏxc‡Ki wewµqv m¤úbœ K‡i A I B Drcv` MV‡bi
12.32 atm 17.3 atm 50 atm kZKiv cwigv‡Yi wfbœZv we‡kølY Ki| 4
2.0 L 1500 ml 0.35 L 7}
927°C 0°C 27°C * GKwU Zwor †Kv‡li †Kvl ms‡KZ wb¤œiƒc :
0.25 mol 1 mol 1 mol 600 ml
0.4 M A/A2+ (0.05M) || B+(0.01M) | B
A-M¨vm B-M¨vm C-M¨vm Zn(NO3)2
`ªeY (A I B ZworØv‡ii RviY wefe h_vµ‡g
K. RviK ej‡Z Kx eyS? 1
L. 10% NaOH Gi NbgvÎv wbY©q Ki| 2 A-cvÎ + 1.18 V Ges - 0.80 V)
M. DÏxc‡Ki A M¨v‡mi GKwU AYyi MwZkw³ wbY©q Ki| 3 K. †mwg †gvjvi `ªeY Kv‡K e‡j? 1
N. DÏxc‡Ki B I C M¨vm †Kvb †Kvb k‡Z© A M¨v‡mi b¨vq L. HCO3 , GKwU Dfagx© Avqb, e¨vL¨v Ki|
-
2
AvPiY Ki‡e? we‡kølY Ki| 4 M. 30°C ZvcgvÎvq DÏxc‡Ki †KvlwUi B.Gg.Gd wbY©q Ki| 3
4} N. DÏxc‡Ki A cv‡Îi `ªe‡Y 10 A we`y¨r 15 wgwbU a‡i
Pvjbv Kivi ci D³ `ªe‡Yi NbgvÎv KZ n‡e?
60 ml 200 ml MvwYwZKfv‡e we‡kølY Ki| 4
10% H2SO4 0.8 g
A+B Ni/Pt (i) O3
`ªeY NaOH 8} A(CnH2n-2) ¾¾¾¾® B ¾¾¾¾® C + D
H2, 200°C (ii) Zn/H2O
(n = 3)
A-cvÎ B-cvÎ C-cvÎ (C I D h_vµ‡g 1 I 2 Kve©bwewkó †hŠM)
K. †gvj fMœvsk Kv‡K e‡j? 1 K. d¨viv‡W aªæeK Kv‡K e‡j? 1
L. Òbgybv cvwb BOD 10 ppm" ej‡Z Kx eyS? 2 L. KMnO4 GKwU †m‡KÛvwi ÷¨vÛvW© c`v_©- e¨vL¨v Ki| 2
M. A I B cv‡Îi `ªe‡Yi UvB‡Uªk‡b †KvbwU Dchy³ wb‡`©kK? M. DÏxc‡Ki A †hŠ‡Mi A¤øawg©Zv mgxKiYmn e¨vL¨v Ki| 3
e¨vL¨v Ki| 3 N. DÏxc‡Ki C I D †hŠ‡Mi g‡a¨ ÒGKwU A¨vjWj Nbxfeb
N. DÏxc‡Ki C-cv‡Îi `ªe‡Yi pH Gi gvb †Kgb n‡e? wewµqv cÖ`k©b Ki‡jI, AciwU K¨vwbRv‡iv wewµqv cÖ`k©b
MvwYwZKfv‡e we‡kølY Ki| 4 K‡iÓ - hyw³ I wewµqvmn Dw³wU e¨vL¨v Ki| 4
6

†mU : 02 PÆMÖvg †evW© 2023 welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} K. A¨vgvBW Kx? 1
M¨vm ZvcgvÎv Pvc fi (g) AvqZb L. Kve©wbj g~jK‡K Kxfv‡e wgw_wjb g~j‡K cwiYZ Kiv hvq?
(°C) (atm) (mL)
e¨vL¨v Ki| 2
A 30 0.974 1.26 500
B 30 0.938 0.30 300 M. DÏxc‡Ki A †hŠ‡M wZbwU p-eÜb Av‡Q- cÖ‡qvRbxq
K. bgybv cvwbi TDS Kx? 1 wewµqvi gva¨‡g e¨vL¨v Ki| 3
L. ev¯Íe M¨v‡mi Pvc Av`k© M¨v‡mi Pvc A‡cÿv Kg †Kb? N. DÏxc‡Ki A I B †hŠ‡Mi †KvbwU B‡jK‡UªvwdwjK
e¨vL¨v Ki| 2 cÖwZ¯’vcb wewµqvq AwaK mwµq? we‡kølY Ki| 4
M. DÏxc‡K 'A' M¨v‡m AYyi msL¨v wnmve Ki| 3 6}
N. DÏxc‡Ki †Kvb M¨vmwU GwmW e„wói Rb¨ `vqx? MvwYwZK hyw³ `vI| 4
2}

K. †gvjvwiwU Kv‡K e‡j? 1

L. FeO RviK I weRviK Dfqiƒ‡c wµqv K‡i †Kb? e¨vL¨v
Ki| 2
M. DÏxc‡Ki A †hŠ‡Mi Kvh©Kix g~j‡Ki kbv³KiY wewµqv
mgxKiYmn e¨vL¨v Ki| 3
K. cig k~b¨ ZvcgvÎv Kx? 1 N. DÏxc‡Ki wewµqv `ywUi wµqv †KŠkj GKB n‡e wK?
L. bgybv cvwbi COD Gi gvb BOD A‡cÿv †ewk †Kb? we‡kølY Ki| 4
e¨vL¨v Ki| 2 7}
M. 3bs cv‡Î M¨vm wgkÖ‡Yi †gvU Pvc KZ n‡e? MYbv Ki| 3
N. DÏxc‡Ki †Kvb M¨vmwUi e¨vcb nvi †ewk n‡e? MvwYwZK
hyw³ `vI| 4
O 3 I‡RvbvBW Zn, D
3} A (2-wg_vBj weDU-2-Bb) ¾¾® ¾¾¾® B + C + ZnO
CCl 4 †hŠM H2O
(B †hŠMwU U‡jb weKvi‡Ki mv‡_ wewµqv K‡i bv)
K. AbyeÜx ÿviK Kv‡K e‡j? 1
L. Kcv‡ii cÖgvY weRviY wefe + 0.3394 Volt K_vwUi A_© E°Zn2+(aq)/Zn(s) = - 0.76 V
Kx? e¨vL¨v Ki| 2 E°Ni2+(aq)/Ni(s) = - 0.25 V

M. DÏxc‡Ki C †hŠM n‡Z 2°-A¨vj‡Kvnj cÖ¯‘wZi wewµqv K. cvwbi LiZv Kv‡K e‡j? 1
mgxKiYmn e¨vL¨v Ki| 3 L. b¨vc_vwjb GKwU A¨v‡iv‡gwUK †hŠM- e¨vL¨v Ki| 2
N. 'A' Ges 'B' †hŠ‡Mi hyZ wewµqvi aib GKB n‡e wK? M. 1bs cv‡Îi avZe AvqbwUi A‡a©K cwigvY K¨v‡_v‡W mwÂZ
we‡kølY Ki| 4 Ki‡Z 2A we`y¨r KZ mgq cÖevwnZ Ki‡Z n‡e? MYbv Ki| 3
4} (i) H 2 SO 4 + H 2 O 2 + KMnO 4 ® O 2 + MnSO 4 + K 2 SO 4 + H 2 O
N. DÏxc‡Ki †Kvl wewµqv ¯^Ztù‚Z©fv‡e NU‡e wK? MvwYwZK
D
(ii) KClO3 ¾® O2 + KCl hyw³ `vI| 4
K. KvBivj Kve©b Kv‡K e‡j? 1 8}
L. †iwmwgK wgkÖY Av‡jvK wbw®µq †Kb? e¨vL¨v Ki| 2
40 ml 50 ml
M. DÏxc‡Ki (i) bs wewµqvwUi RviY-weRviY Aa©-wewµqvi 0.5 M 2.5 M
mvnv‡h¨ mgZv Ki| 3 HCl `ªeY HCl `ªeY
N. (i) bs I (ii) bs wewµqvq STP †Z 50 L K‡i Aw·‡Rb cvÎ-A cvÎ-B
ˆZwi Ki‡Z GKB cwigvY H2O2 Ges KClO3 cÖ‡qvRb n‡e
K. Kvh©Kix g~jK Kv‡K e‡j? 1
wK? DÏxc‡Ki Av‡jv‡K we‡kølY Ki| 4
5} L. †cÖvcv‡bvb U‡UvgvwiRg †`Lvq- e¨vL¨v Ki| 2
M. 'A' I 'B' cv‡Îi `ªeY `ywU wgwkÖZ K‡i cÖvß wgkÖ `ªe‡Yi
NbgvÎv wbY©q Ki| 3
N. 'B' cv‡Îi `ªe‡Y 10 mL 5% (w/V) NaOH `ªeY †hvM Ki‡j
wgkÖ `ªe‡Yi cÖK…wZ †Kgb n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
7

†mU : 02 wm‡jU †evW© 2023 welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} KOH(aq) [O]
5 } Y ¾¾¾¾® Z ¾¾¾¾¾¾¾® M ¾¾¾¾¾¾¾® T
[O]
50 ml 20 mL 10 mL K2Cr2O7 & H2SO4 K2Cr2O7 & H2SO4
0.21 M 1.5 g 0.4% T = wZb Kve©bwewkó g‡bvKve©w·wjK GwmW|
H2SO4 Na2CO3 NaOH
K. A¨vgvMvi eµ Kx? 1
`ªeY `ªeY `ªeY
L. AlCl3 GKwU jyBm GwmW- e¨vL¨v Ki| 2
X-cvÎ Y-cvÎ Z-cvÎ
M. Z-†hŠ‡Mi Kvh©Kix g~jK Kxiƒ‡c kbv³ Ki‡e? mgxKiYmn
K. Wvqv‡÷wiIgvi Kx? 1
eY©bv Ki| 3
L. Cu-Gi weRviY wefe + 0.34 V ej‡Z Kx eyS? 2
N. M I T-†hŠM `ywUi g‡a¨ GKwU †K›`ªvKlx© ms‡hvRb wewµqv
M. Z-cv‡Î 40 mL cvwb †hvM Ki‡j `ªe‡Yi NbgvÎv KZ ppm
w`‡jI AciwU cÖwZ¯’vcb wewµqv †`q- we‡kølY Ki| 4
n‡e? wn‡me Ki| 3
6}
N. DÏxc‡Ki X-cv‡Îi `ªe‡Y Y I Z-cv‡Îi `ªeY †hvM Ki‡j
1.0 g
wgkÖ‡Yi cÖKw… Z Kxiƒc n‡e Zv we‡kølY Ki| 4 0.05 M
A¤øxq
2} K2Cr2O7 `ªeY
FeSO4 `ªeY
500 X-cvÎ Y-cvÎ
Pvc (atm) 375
K. †g‡mv UviUvwiK Gwm‡Wi MvVwbK ms‡KZ †jL| 1
AvqZb
3 250 L. wg_vBjA¨vwgb, WvBwg_vBjA¨vwgb A‡cÿv Kg ÿvixq
(cm ) 100
50 125 †Kb? 2
M. Y-cv‡Îi `ªe‡Y H2C2O4 `ªeY †hvM Ki‡j msNwUZ RviY-
X 2 300 600 900 1200
Pvc (atm) ZvcgvÎv (K) weRviY wewµqv Avqb-B‡jKUªb c×wZ‡Z mgZv weavb
1g wPÎ 2q wPÎ Ki| 3
N. DÏxc‡Ki weRviK c`v_©wU‡K RvwiZ Ki‡Z K2Cr2O7 Gi
K. UvBUvi Kx? 1
KZ wgwj cÖ‡qvRb n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
L. A¤øxq KMnO4 RviK †Kb? e¨vL¨v Ki| 2
7}
M. DÏxcK †_‡K X-Gi gvb wbY©q Ki| 3
N. DÏxc‡Ki †jLwPÎ¸‡jv we‡kølY K‡i cÖvß m~ÎØ‡qi Zzjbv
Ki| 4
2% Hg2+ cybwe©b¨vm
3} CH3 - C º CH + H2O ¾¾¾¾® T ¾¾¾¾® X
20% H2SO4
D K. Zwor ivmvqwbK Zzj¨v¼ Kv‡K e‡j? 1
(HCOO)2Ca ¾® Y + CaCO3
L. ppm ZvcgvÎvi Dci wbf©i Ki‡e Kx? e¨vL¨v Ki| 2
K. wiW· wewµqv Kv‡K e‡j? 1
M. Y-†hŠM n‡Z Kxfv‡e 1° A¨vj‡Kvnj cÖ¯Z ‘ Ki‡e?
L. GwmW e„wói KviY e¨vL¨v Ki| 2
mgxKiYmn †jL| 3
M. X-†hŠMwU U‡UvgvwiRg cÖ`k©b K‡i- e¨vL¨v Ki| 3 N. T †hŠM n‡Z Z †hŠM cÖ¯Z ‘ Kiv wK m¤¢e? wewµqvmn
N. X Ges Y Gi g‡a¨ †KvbwU K¨vwbRv‡iv wewµqv cÖ`k©b we‡kølY Ki| 4
Ki‡e? hyw³mn we‡kølY Ki| 4 8} i. PV = nRT
4} X2+ + 2e- ® X; E° = - 0.44 V ii. :CO: + AlF3 ® [Al(CO)F3]
Y2 + 2e- ® Y; E° = - 0.25 V K. Rvi‡Yi B‡jKUªbxq msÁv `vI| 1
Z2+ + 2e- ® Z; E° = - 2.3 V
L. Li cvwb‡Z mvevb AKvh©Ki †Kb? e¨vL¨v Ki| 2
K. AbyiYb Kv‡K e‡j? 1
M. DÏxc‡Ki (i) bs mgxKiY e¨envi K‡i M¨vm wgkÖ‡Yi
L. 2-†cw›Ub R¨vwgwZK mgvYyZv cÖ`k©b K‡i- e¨vL¨v Ki| 2 AvswkK Pvc Ges †gvU Pv‡ci g‡a¨ m¤úwK©K m~ÎwU
M. X I Y ZworØvi Øviv MwVZ †Kv‡li wefe wbY©q Ki| 3 cÖwZwôZ Ki| 3
N. Y2+ Avq‡bi `ªeY‡K Z-avZz wbwg©Z cv‡Î msiÿY Kiv hv‡e
N. †Kvb gZev` Abymv‡i DÏxc‡Ki wewµqvwU‡K A¤ø-ÿviK
wKbv, Zv MvwYwZKfv‡e we‡kølY Ki| 4 wewµqviƒ‡c wPwýZ Kiv hvq Zv e¨vL¨v Ki| 4
8

†mU : 02 ewikvj †evW© 2023 welq †KvW : 1 7 7

35 ml 0.4 M 45 ml
H2SO4 10% Na2CO3
`ªeY `ªeY
cvÎ-P cvÎ-Q
K. wd«-i¨vwW‡Kj Kv‡K e‡j? 1
K. `~lK Kv‡K e‡j? 1
L. AlCl3 Gi Rjxq `ªeY A¤øxq- e¨vL¨v Ki| 2
L. B_vb¨vj A¨vjWj Nbxfeb wewµqv †`q- e¨vL¨v Ki| 2 M. P-cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3
M. DÏxc‡Ki A-M¨vmwUi AvYweK fi wn‡me Ki| 3 N. DÏxc‡Ki `ªeYØq‡K GK‡Î wgwkÖZ Ki‡j wgwkÖZ `ªe‡Yi
N. DÏxc‡Ki M¨vm wgkÖ‡Yi Pvc 110 kPa n‡j M¨vm `ywU Av`k© cÖK…wZ Kxiƒc n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
6} (i) H2SO4 wgwkÖZ 25 mL KMnO4 `ªeY
AvPiY Ki‡e wKbv? we‡kølY Ki| 4
(ii) 28 mL 0.1 M C2H2O4 `ªeY
2}
(iii) A¤ø xq 50 mL FeSO4 `ªeY
Fe Ges Mn Gi cvigvYweK fi h_vµ‡g 56 Ges 55|
K. evdvi `ªeY Kv‡K e‡j? 1
L. Na2S2O3 GKwU †m‡KÛvwi ÷¨vÛvW© c`v_©- e¨vL¨v Ki| 2
M. (i) I (ii)bs `ªe‡Yi g‡a¨ msNwUZ wewµqvwU Avqb-
wmwjÛvi-1 27°C ZvcgvÎvq 200 atm Pvc mn¨ Ki‡Z cv‡i Ges B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
wmwjÛvi-2 37°C ZvcgvÎvq 50 atm Pvc mn¨ Ki‡Z cv‡i| N. DÏxc‡Ki (i) I (ii) bs `ªeY e¨envi K‡i (iii) bs `ªe‡Yi Fe Gi
cwigvY wbY©q Kiv m¤¢e wK? MvwYwZKfv‡e we‡kølY Ki| 4
K. mwÜ ZvcgvÎv Kv‡K e‡j? 1
7}
L. Ag Gi ivmvqwbK Zzj¨vsK 0.001118 g/C ej‡Z Kx eySvq? 2 T R
M. M¨vm wmwjÛvi-1 G CH4 AYyi msL¨v wn‡me Ki| 3 avZe cvÎ
D
N. M¨vm cwien‡bi Rb¨ DÏxc‡Ki †Kvb wmwjÛviwU AwaK 0.4 M T2+ 0.3 M R2+
Dc‡hvMx? MvwYwZKfv‡e cÖg vY Ki| 4 E°T2+/T = - 0.80 V E°R2+/R = - 0.40 V
E°D2+/D = - 0.39 V
i. I‡Rv‡bvjvBwmm
3} 2-wg_vBj †cÖvwcb ¾¾¾¾¾¾® A + B + ZnO + H2O K. SATP Kv‡K e‡j? 1
ii. Zn/H2O
L. 64 g O2 M¨v‡mi Rb¨ f¨vÛvi Iqvjm mgxKiY †jL| 2
A-†hŠMwU n¨v‡jvdg© wewµqv †`q bv|
M. DÏxc‡Ki Aa©‡Kvl `ywU Øviv m„ó †Kv‡li Zwo”PvjK ej
K. †gvj fMœvsk Kv‡K e‡j? 1 wnmve Ki| 3
L. H3 O +
†K H2O Gi AbyeÜx A¤ø ejv nq †Kb? e¨vL¨v Ki| 2 N. DÏxc‡Ki T Aa©‡Kvl `ªeY‡K D cv‡Î msiÿY Kiv hv‡e
M. DÏxc‡Ki A-†hŠMwU cÖ‡qvRbxq wewµqvmn kbv³ Ki| 3 wKbv? †Zvgvi gZvgZ MvwYwZKfv‡e we‡kølY Ki| 4
8}
N. hyZ wewµqvq †hŠM A Ges B Gi mwµqZvi µg we‡kølY Ki| 4
Fe tube HNO3, D
4} P ¾¾¾¾® Q ¾¾¾® R
450 °C H2SO4
GLv‡b P GKwU `yB Kve©bwewkó Am¤ú„³ nvB‡WªvKve©b|
K. Av‡jvK mgvYyZv Kv‡K e‡j? 1
K. Kve©vbvqb Kv‡K e‡j? 1 L. A¨vwbwjb I wg_vBj A¨vwg‡bi g‡a¨ †KvbwU †ewk
L. cvwbi BOD 5 mg/L ej‡Z Kx eySvq? 2 ÿviKxq? e¨vL¨v Ki| 2
M. Q n‡Z R ˆZwii †KŠkj wewµqvi gva¨‡g e¨vL¨v Ki| 3 M. Y Gi mv‡_ H2O2 Gi Dcw¯’wZ‡Z HBr Gi wewµqvi
†KŠkj e¨vL¨v Ki| 3
N. †hŠM Q Ges R Gi g‡a¨ †KvbwU B‡jK‡UªvwdwjK
N. X Ges Z Gi g‡a¨ †KvbwU R¨vwgwZK mgvYyZv cÖ`k©‡b
cÖwZ¯’vcb wewµqvq †ewk mwµq? we‡kølY Ki| 4 mÿg? KviY we‡kølY Ki| 4
9

†mU : 02 w`bvRcyi †evW© 2023 welq †KvW : 1 7 7

A I C cvÎØq 105 cm (Hg) ch©šÍ Pvc mn¨ Ki‡Z cv‡i|

K. wd« †iwW‡Kj Kv‡K e‡j? 1 K. †nUv‡ivmvBwK¬K †hŠM Kv‡K e‡j? 1
L. †Wwm‡gvjvi `ªeY‡K cÖgvY `ªeY ejv nq †Kb? e¨vL¨v Ki| 2 L. avZzi ÿq GKwU ivmvqwbK cÖwµqv- e¨vL¨v Ki| 2
M. DÏxc‡Ki A cv‡Îi M¨v‡mi MwZkw³ wbY©q Ki| 3 M. A-`ªe‡Y Gwm‡Wi †gvjvwiwU wbY©q Ki| 3
N. DÏxc‡Ki myBP `yBwUi †KvbwU cÖ_‡g Ly‡j w`‡j `yN©Ubv N. B-`ªe‡Y 100 mL A `ªe‡Yi GwmW wgwkÖZ Ki‡j wgkÖ‡Yi
NU‡Z cv‡i? MvwYwZKfv‡e we‡kølY Ki| 4 cÖK…wZ Kxiƒc n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
2} 6}

K. mgPvc †iLv Kv‡K e‡j? 1 K. `k©K Avqb Kv‡K e‡j? 1

L. Kcv‡ii Zwor ivmvqwbK Zzj¨vsK 3.29 ´ 10-4 gC-1 ej‡Z L. Zwor we‡køl¨ cwievnx‡K AvqwbK cwievnx ejv nq †Kb? 2
Kx eySvq? 2 M. P-n‡Z Q cÖ¯w‘ Zi wewµqvi †KŠkj eY©bv Ki| 3
M. B †hŠM †_‡K A¨vj‡Kvn‡ji cÖ¯w‘ Z mgxKiYmn †jL| 3
N. B‡jK‡UªvwdwjK cÖwZ¯’vcb wewµqvi †ÿ‡Î P, Q Ges R
N. DÏxc‡Ki B I C wfbœ ai‡bi ms‡hvRb wewµqv cÖ`k©b
†hŠ‡Mi mwµqZvi mwVK µg we‡kølY Ki| 4
K‡i- we‡kølY Ki| 4
7}
3} A2O72- + Fe2+ + H+ ® Drcv`
HCl
A Gi cvigvYweK msL¨v = 24 A M¨vm

K. Kvh©Kix g~jK Kv‡K e‡j? 1 t = 25 °C

Z
Y
L. H2PO4- Dfagx© c`v_©- e¨vL¨v Ki| 2 PV
X
M. cÖ`Ë wewµqvwU Avqb B‡jKUªb c×wZ‡Z mgZv Ki| 3 100 MÖvg
N. DÏxc‡Ki A2O7 Gi cwie‡Z© BO4 (B Gi cvigvYweK
2- -
95% CaCO3
P
msL¨v = 25) e¨envi Kiv n‡jI Avqi‡bi cwigvY wbY©q
Kiv m¤¢e- we‡kølY Ki| 4 K. †gvjvi AvqZb Kv‡K e‡j? 1
4} L. †cÖvcv‡bvb U‡UvgvwiZv †`Lvq- e¨vL¨v Ki| 2
M. 30 °C ZvcgvÎvq 850 mm (Hg) Pv‡c KZ AvqZb A M¨vm
cvIqv hv‡e? wnmve Ki| 3
X-
avZz Y- N. DÏxc‡Ki A-M¨vm †jLwP‡Îi †Kvb †iLvi gZ AvPiY K‡i
avZz
X2+ Y+ hyw³mn e¨vL¨v Ki| 4
0.2 M 0.3 M 8}
X I Y Gi cvigvYweK msL¨v h_vµ‡g 28 I 47
E°X2+/X = - 0.25 V;
E°Y+/Y = + 0.80 V
K. cvwbi ¯’vqx LiZv Kv‡K e‡j? 1
L. C3H8O Gi m¤¢ve¨ mgvYy¸‡jvi ms‡KZ †jL| 2 K. Zwor ivmvqwbK Zzj¨v¼ Kv‡K e‡j? 1
M. DÏxc‡Ki Wvb cvÎwU‡Z Kx cwigvY Y+ Avqb Av‡Q wnmve L. †iwmwgK wgkÖY Av‡jvK wbw®µq- e¨vL¨v Ki| 2
Ki| 3 M. D †hŠ‡Mi kbv³KiY wewµqvmn †jL| 3
N. †KvlwUi Y+ Avq‡bi NbgvÎv 1.5 M n‡j ˆe`y¨wZK evwZwUi N. B I C †hŠ‡Mi g‡a¨ GKwU †hŠM A¨vjWj Nbxfeb I
D¾¡jZvi cwieZ©b n‡e wK-bv? MvwYwZKfv‡e we‡kølY n¨v‡jvdig Dfq wewµqv †`q wKš‘ AciwU †`q bv-
Ki| 4 we‡kølY Ki| 4
10

†mU : 04 gqgbwmsn †evW© 2023 welq †KvW : 1 7 7

E°Ni2+/Ni = - 0.25 V
450 mL
1M E°Zn2+/Zn = - 0.76 V
NI(NO3)2 `Ëe Y

K. wb‡`©kK Kv‡K e‡j? 1

K. A¨v‡iv‡gwUwmwU Kv‡K e‡j? 1
L. Ag Gi Zwor ivmvqwbK Zzj¨v¼ 0.001118 gC ej‡Z Kx
-1
L. `ªe‡Yi †gvjvwiwU ZvcgvÎvwbf©i †Kb? e¨vL¨v Ki| 2
eyS? e¨vL¨v Ki| 2 M. DÏxcK wPÎg‡Z 1.0 NÈv hver 3.0 A gvÎvi Zwor Pvjbv
M. ÷cKK© †Lvjv Ae¯’vq M¨vm wgkÖ‡Yi †gvU Pvc wbY©q Ki| 3 †k‡l Zworwe‡køl¨ `ªeYwUi NbgvÎv KZ n‡e? 3
N. A I B M¨vmØ‡qi g‡a¨ †KvbwUi e¨vcb nvi †ewk n‡e Zv N. DÏxc‡Ki Zworwe‡kø‡l¨i `ªeYwU‡K `xN©w`b `¯Ívcv‡Î
MvwYwZKfv‡e we‡kølY Ki| 4 msiÿY m¤¢e n‡e wKbv- MvwYwZKfv‡e we‡kølY Ki| 4
D Cl 2 6}
2 } P(Kve©wjK GwmW) + Zn ¾® Q ¾¾¾¾¾® R + HCl 50 mL 250 mL
cÖavb Drcv` Abv`ª© FeCl 3
†mwg‡gvjvi Kw÷K †Wwm‡gvjvi
K. cÖgvY ZworØvi wefe Kv‡K e‡j? 1 cUvk `ªeY wØÿviKxq A¤ø
L. `yej
© Gwm‡Wi AbyeÜx ÿviK mej nq †Kb? e¨vL¨v Ki| 2 A -cvÎ B-cvÎ

M. DÏxc‡Ki Q †_‡K R †hŠM ˆZwii wµqv‡KŠkj e¨vL¨v Ki| 3 K. †iwmwgK wgkÖY Kv‡K e‡j? 1
N. DÏxc‡Ki Q I R †hŠMØ‡qi g‡a¨ †KvbwUi bvB‡Uªkb L. M¨vjfvwbK †Kv‡l jeY †mZzi f‚wgKv e¨vL¨v Ki| 2
M. A-cv‡Î we`¨gvb `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3
mn‡R N‡U Zv we‡kølY Ki| 4
N. A-cvÎ I B-cv‡Îi `ªeY wgwkÖZ Ki‡j wgkÖ‡Yi cÖKw… Z
3}
Kxiƒc n‡e Zv MvwYwZKfv‡e we‡kølY Ki| 4
M (8.0 g) 'N' M¨vm 7}
a = 3.6068 atm L2 mol-2
A
PV b = 0.04286 L mol-1
T = 298 K
P V= 1L
K. cvwbi ¯’vqx LiZv Kv‡K e‡j? 1
K. jyKvm weKviK Kv‡K e‡j? 1
L. BF3 GKwU jyBm GwmW- e¨vL¨v Ki| 2
L. b¨vc_vwjb GKwU A¨v‡iv‡gwUK †hŠM- e¨vL¨v Ki| 2 M. DÏxc‡Ki Q †hŠMwUi Kvh©Kix g~jK kbv³Kvix cixÿv
M. DÏxc‡Ki 'M' M¨v‡mi NbZ¡ 25 °C I 1 atm Pv‡c 1.775 mgxKiYmn †jL| 3
gL-1 n‡j M¨vmwUi MwZkw³ wbY©q Ki| 3 N. DÏxc‡Ki M I N †hŠ‡Mi †KvbwU †÷wiI mgvYyZv cÖ`k©b
N. DÏxc‡Ki 1 †gvj 'N' M¨vmwUi Pvc Av`k© bv ev¯Íe, †Kvb K‡i Zv we‡kølY Ki| 4
Ae¯’vq †ewk n‡e? MvwYwZK we‡kølY Ki| 4 8}
A·vwjK GwmW 2 g †jŠn UzKiv
4} i. CaC2 + 2H2O ® X + Ca(OH)2
¯ ¯
H2 Fe bj jNy H2SO4 jNy 25 mL
ii. Y ¬¾¾¾¾ X ¾¾¾® Z wgwkÖZ KMnO4 H2SO4 `ªeY
Pd, BaSO4 450 °C 0.1 M K2Cr2O7
`ªeY `ªeY
K. Redox wewµqv Kv‡K e‡j? 1
A-cvÎ B-cvÎ C-cvÎ
L. bgybv cvwbi COD gvb BOD A‡cÿv †ewk nq †Kb?
[C cv‡Îi `ªeY Øviv B cv‡Îi `ªeY m¤ú~Yi© ƒ‡c RvwiZ Kiv hvq]
e¨vL¨v Ki| 2
K. e‡qj ZvcgvÎv Kv‡K e‡j? 1
M. X I Y M¨v‡mi wgkÖY †_‡K Dcv`vbØq‡K Kxfv‡e c„_K
L. Bw_b I †cÖvwcb ci¯úi mg‡MvÎK †Kb? e¨vL¨v Ki| 2
Kiv hvq Zv mgxKiYmn †jL| 3 M. DÏxc‡Ki A-cv‡Î msNwUZ wewµqvwU Avqb-B‡jKUªb
N. Y I Z †hŠMmg~n GKB iKg ˆewkó¨c~Y© wewµqv †`q wKbv c×wZ‡Z mgZv Ki| 3
we‡kølY Ki| 4 N. DÏxc‡Ki †jvnvi UzKivwU weï× wKbv MvwYwZK we‡kølY `vI| 4
11

†mU : 03 XvKv †evW©, 2022 welq †KvW : 1 7 7

A
PV

500 mL E°Ni2+/Ni = - 0.25 V

1M E°Zn 2+/Zn = - 0.76 V
Ni(NO3)2 `ªeY
P
[25 °C I 1 atm Pv‡c M M¨v‡mi NbZ¡ 1.775 gL-1] K. KvBivj Kve©b Kx? 1
L. A¨vwbwj‡bi bvB‡Uªk‡b †gUv Drcv` cvIqv hvq †Kb? 2
K. `k©K Avqb Kx? 1
M. DÏxc‡Ki `ªe‡Y 1 NÈv we`y¨r Pvjbvi ci `ªe‡Yi NbgvÎv
L. cvB‡ivj GKwU A¨v‡iv‡gwUK †hŠM- e¨vL¨v Ki| 2 KZ n‡e? MYbv Ki| 3
M. 0 °C ZvcgvÎvq 8.0 g 'M' M¨v‡mi MwZkw³ wbY©q Ki| 3 N. DÏxc‡Ki Zwor we‡køl¨ `ªeYwU‡K `xN©w`b `¯Ívcv‡Î msiÿY m¤¢e
N. DÏxc‡Ki 'A' M¨vmwU †Kvb k‡Z© 'M' M¨v‡mi Abyiƒc n‡e wKbv Zv MvwYwZKfv‡e we‡kølY Ki| 4
AvPiY Ki‡e Zv we‡kølY Ki| 4 6}
2} (i) CaC2 + 2H2O ® P + Ca(OH)2 250 mL
†Wwm‡gvjvi 50 mL
H2 Fe bj †mwg‡gvjvi
(ii) Q ¬¾¾¾¾ P ¾¾¾® R wØÿviKxq
Pd, BaSO4 450 °C A¤ø KOH `ªeY

K. A¤ø-ÿvi wb‡`©kK Kx? 1 A cvÎ B cvÎ

L. SI GK‡K R Gi gvb wbY©q Ki| 2 K. †iwmwgK wgkÖY Kx? 1
M. P I Q M¨vm wgkÖY †_‡K Dcv`vbØq‡K Kxfv‡e c„_K Kiv L. `yej
© Gwm‡Wi AbyeÜx ÿviK mej nq †Kb? 2
hvq Zv mgxKiYmn †jL| 3 M. B cv‡Î we`¨gvb `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3
N. P, Q I R †hŠMmg~‡ni Am¤ú„³Zv GKB n‡e Kx? we‡kølY N. DÏxc‡Ki `ªeYØq wgwkÖZ K‡i cÖvß wgkÖ‡Yi cÖKw… Z Kxiƒc
Ki| 4 n‡e Zv MvwYwZKfv‡e we‡kølY Ki| 4
3}
7}
27°C ÷cKK 27°C
760 mm(Hg) 780 mm(Hg)
500 mL 400 mL K. Li cvwb Kx? 1
0.450 g 0.350 g
L. Fe2+ Avqb RviK I weRviK Dfq wn‡m‡e wµqv K‡i †Kb?
A M¨vm B M¨vm
e¨vL¨v Ki| 2
K. B‡jK‡UªvdvBj Kx? 1 M. DÏxc‡Ki Q †hŠMwUi Kvh©Kix g~jK kbv³Kvix cixÿv
L. Ag Gi Zwor ivmvqwbK Zzj¨v¼ 0.001118 gC ej‡Z Kx
-1
mgxKiYmn †jL| 3
eyS? 2 N. DÏxc‡Ki M I N †hŠ‡Mi †KvbwU R¨vwgwZK mgvYyZv
M. ÷cKK †Lvjv Ae¯’vq M¨vm wgkÖ‡Yi †gvU Pvc wbY©q Ki| 3 cÖ`k©b K‡i Zv we‡kølY Ki| 4
N. DÏxc‡K M¨vmØ‡qi g‡a¨ †KvbwUi e¨vcb nvi †ewk Zv 8}
jNy H2SO4 2g †jŠn UzKiv
MvwYwZKfv‡e we‡kølY Ki| 4
30 mL
COONa 50 mL jNy 0.1 M
KMnO4 º
H2SO4 K2Cr2O7
D CH3Cl `ªeY
4} + NaOH(CaO) ¾® 'Y' ¾¾¾¾¾® 'Z' + HCl `ªeY `ªeY
Abv`ª© AlCl3 A cvÎ B cvÎ C cvÎ
K. cÖgvY nvB‡Wªv‡Rb ZworØvi Kx? 1
K. AvB‡mv_vg© Kx? 1
L. `~wlZ cvwbi bgybvi COD gvb BOD gvb †_‡K †ewk nq
L. M¨vjfvwbK †Kv‡l jeY †mZz e¨envi Kiv nq †Kb? 2
†Kb? 2 M. A cv‡Î A·vwjK GwmW †hvM Ki‡j msNwUZ wiW·
M. Y †_‡K Z ˆZwii wµqv-†KŠkj e¨vL¨v Ki| 3 wewµqvwU Avqb-B‡jKUªb c×wZ‡Z mgZv Ki| 3
N. Y I Z †hŠMØ‡qi g‡a¨ †KvbwUi bvB‡Uªkb mn‡R N‡U Zv N. DÏxcK cv‡Îi †jŠn LÐwUi weï×Zv MvwYwZKfv‡e hvPvB
KviYmn we‡kølY Ki| 4 Ki| 4
12

†mU : 01 ivRkvnx †evW© 2022 welq †KvW : 1 7 7

0.5 M 70 mL
50 mL 0.1 M
(i) A(g) + CH3COOH ® CH3CONH2 + H2O H2SO4 KOH
(ii) R - OH + PCl5 ® B(g) + RCl + POCl3 A-`ªeY B-`ªeY
K. †gvjvi `ªeY Kx? 1 K. †gUv wb‡`©kK Kx. 1
L. Fe2+ RviK I weRviK Dfq wnmv‡e KvR K‡i †Kb? 2 L. cvwbi COD 1.5 mgL-1 ej‡Z Kx eyS? 2
M. DÏxc‡Ki b‡ji Af¨šÍ‡i A I B M¨vm KZ `~i‡Z¡ wgwjZ
M. A-`ªe‡Y 500 mL cvwb †hvM Ki‡j †h `ªeY ˆZwi nq Zvi
n‡q †auvqvi m„wó K‡i? MvwYwZK e¨vL¨v `vI| 3
ppm NbgvÎv KZ? 3
N. DÏxc‡Ki A I B †hŠ‡Mi cÖKw… Z eªæb‡÷W-jvDixi
gZvg‡Zi Av‡jv‡K e¨vL¨v Ki| 4 N. A I B `ªe‡Yi wgkÖ‡Y AviI KZ MÖvg Ca avZz w`‡j `ªeYwU
2} wb‡Pi DÏxcKwU jÿ Ki : m¤ú~Y© cÖkwgZ n‡e? 4
2.0 A 6} 2
(i) A/A + E° = + 0.75 V
B
1.5 (ii) B/B2+ : E° = + 0.40 V
1.0 D
0.5
(iii) C/C2+ : E° = + 0.35 V
Z K. cÖgvY RviY wefe Kx? 1
0.0
100 200 300 400 L. d¨viv‡Wi m~Î n‡Z GKwU B‡jKUª‡bi PvR© wbY©q Ki| 2
P (atm)
M. (i) I (iii) bs ZworØvi Øviv jeY †mZzmn †Kvl ˆZwi K‡i
B-M¨vm Pzbvcv_‡ii we‡qvR‡b cvIqv hvq|
Zvi wefe wbY©q Ki| 3
K. RviY msL¨v Kx? 1
N. B-wbwg©Z cv‡Î A I C Gi jeY Gi `ªeY ivL‡j †KvbwU
L. wm. wR. Gm GK‡K †gvjvi M¨vm aªæe‡Ki gvb wbY©q Ki| 2
M. 27 °C ZvcgvÎvq B M¨vmwUi 10 g Gi MwZkw³ Ryj GK‡K ivmvqwbK wewµqvq ÿqcÖvß n‡e? we‡kølY Ki| 4
wbY©q Ki| 3 7}
N. Kx kZ© cÖ‡qvM Ki‡j A I B M¨vm D M¨v‡mi b¨vq AvPiY 1bs `ªeY 5g †jvnvi AvKwiK + 150 mL H2SO4
Ki‡e? e¨vL¨v Ki| 4 2bs `ªeY 0.03 M, 25 mL K2Cr2O7 Gi `ªeY
3} 3bs `ªeY KI I jNy H2SO4 Gi `ªeY
†hŠM-A 3° A¨vjKvBj n¨vjvBW (i) A + NaOH(aq) ®
4bs `ªeY KMnO4 Gi `ªeY
C + NaCl
†hŠM-B 1° A¨vjKvBj n¨vjvBW (ii) B + NaOH(aq) ® K. (CH3)3COH Gi IUPAC bvg †jL| 1
D + NaCl L. `ywU †hŠM KLb GbvbwkIgvi nq? e¨vL¨v `vI| 2
K. Wvqv‡÷wiIgvi Kx? 1 M. DÏxc‡Ki 3bs I 4bs `ªe‡Yi g‡a¨ msNwUZ wewµqv
L. weDU-2-Bb R¨vwgwZK mgvYyZv cÖ`k©b Ki‡e wK? 2
Avqb-B‡jKUªb c×wZ‡Z mgZvKiY Ki| 3
M. wewµqvmn C I D †hŠ‡Mi cv_©K¨ †jL| 3
N. 1bs `ªeY n‡Z 30 mL †K RvwiZ Ki‡Z 2bs `ªeY `iKvi
N. DÏxc‡Ki (i) bs wewµqvi †KŠkj Av‡jvPbv Ki| 4
n‡jv| Zvn‡j †jvnvi AvKwi‡K †fRv‡ji kZKiv cwigvY
4}
O3 KZ? 4
mgvYy (C) CH3CH2CHO + HCHO
A-AYy
H2O, Zn †mvWvjvBg bvB‡Uªkb
O3 8} X ¾¾¾¾® Y ¾¾¾¾® Z
mgvYy (D) 2wU Abyiƒc Kve©wbj †hŠM Zvc
Zn, H2O
[X = Kv‡e©vw·wjK Gwm‡Wi †mvwWqvg jeY]
K. nv‡Kj ZË¡wU †jL| 1
K. d-j¨vKwUK Gwm‡Wi ms‡KZ †jL| 1
L. †gvjvwiwU ZvcgvÎv wbf©i- e¨vL¨v Ki| 2
M. DÏxc‡Ki (D) †hŠMwU †Kvb ai‡bi †÷wiI mgvYyZv cÖ`k©b L. Zwor we‡kølY GKwU Redox wewµqv- e¨vL¨v Ki| 2
Ki‡e? e¨vL¨v `vI| 3 M. Y n‡Z Z cÖ¯w‘ Zi wµqv‡KŠkj Av‡jvPbv Ki| 3
N. Dchy³ †KŠkjmn †`LvI †h, (C) †hŠMwU gvK©wbK‡fi m~Î N. Y I Z †K bvB‡Uªkb Ki‡j wfbœ Drcv` cvIqv hvq-
†g‡b P‡j| 4 †i‡Rvb¨v‡Ýi mvnv‡h¨ e¨vL¨v Ki| 4
13

†mU : 01 h‡kvi †evW© 2022 welq †KvW : 1 7 7

mgq-1 NÈv 40 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-30
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv wZbwU cÖ‡kœi DËi w`‡Z n‡e|]
1} 5}
25°C 25 °C
100 kPa 100 kPa
12.4 L 50.5 L
20 g 7.2 g
A-M¨vm B-M¨vm
ZnSO4 NiSO4
K. †m‡KÛvwi ÷¨vÛvW© c`v_© Kx? 1
[t = 25 °C; E°Zn/Zn2+ = + 0.76 V;
L. AlCl3 GKwU jyBm GwmW- e¨vL¨v Ki| 2 E°Ni/Ni2+ = + 0.25 V; E°M/M3+ = + 1.66 V]
M. 1 †gvj B M¨v‡mi AYyi MwZkw³ wbY©q Ki| 3 K. Zwor ivmvqwbK †Kvl Kx? 1
N. A I B M¨vmØ‡qi g‡a¨ †KvbwUi e¨vcb nvi †ewk n‡e? L. M¨v‡mi MwZkw³ wbY©‡q RMS †eM †Kb AwaK Dc‡hvMx?
MvwYwZKfv‡e we‡kølY Ki| 4 e¨vL¨v Ki| 2
M. DÏxcK †KvlwUi emf wbY©q Ki| 3
2} N. DÏxc‡Ki K¨v‡_vWxq `ªeYwU‡K M Gi cv‡Î ivLv hv‡e wK?
MvwYwZKfv‡e we‡kølY Ki| 4
K. cig k~b¨ ZvcgvÎv Kx? 1 6}
L. †cÖv‡cb I weD‡Ub ci¯úi mg‡MvÎK- e¨vL¨v Ki| 2 27 °C 27 °C
1.5 atm 2 atm
M. B †hŠMwUi Zxeª Rvi‡Y Drcv` Kx n‡e mgxKiYmn 600 mL 400 mL
A M¨vm B M¨vm
†`LvI| 3
N. A †hŠM I HX Gi ms‡hvRb wewµqvq †KvbwU cÖavb [M¨vm wgkÖ‡Yi cixÿvjä †gvU Pvc = 2.5 atm]
Drcv` n‡e mswkøó bxwZi Av‡jv‡K we‡kølY Ki| 4 K. Kvh©Kix g~jK Kx? 1
(O) (O) L. K2Cr2O7 GKwU RviK c`v_©- e¨vL¨v Ki| 2
3} C3H8O ¾® A ¾® B
(X)
M. A M¨v‡mi AYy msL¨v wbY©q Ki| 3
(O) N. A I B M¨v‡mi wgkÖY Wvë‡bi AvswkK Pvc m~Î‡K mg_©b
C3H8O ¾¾¾¾¾¾® C
AvswkK RviY K‡i wK? MvwYwZKfv‡e we‡kølY Ki| 4
(Y)
7}
[X I Y h_vµ‡g 1° I 2° A¨vj‡Kvnj]
0.52 g Fe 2.94 g
K. SI GK‡K R Gi gvb KZ? 1 KMnO4 + H2SO4 K2Cr2O7
`ªeY `ªeY `ªeY
L. 0.1 M Na2CO3 `ªeY ej‡Z Kx †evSvq? e¨vL¨v Ki| 2 100 mL
M. B †hŠ‡Mi kbv³Kvix wewµqv mgxKiYmn †jL| 3 `ªeY-1 `ªeY-2 `ªeY-3
N. †K›`ªvKlx© hyZ wewµqvq A I C Gi g‡a¨ †KvbwU AwaK K. c¨vivwdb Kx? 1
mwµq n‡e? we‡kølY Ki| 4 L. †Kv‡l jeY †mZz e¨envi Kiv nq †Kb? e¨vL¨v Ki| 2
4} M. 1bs I 2bs `ªe‡Yi wgkÖ‡Y msNwUZ wewµqvi mgZvK…Z
5g
mgxKiY †jL| 3
0.2 M 500 mL 4.5% (w/V) N. 2bs `ªeY‡K m¤ú~Y© RvwiZ Ki‡Z 3bs `ªe‡Yi 10 mL
2L XY GK 25 mL
cÖ‡qvRb n‡j †jvnvi weï×Zv MvwYwZKfv‡e we‡kølY Ki| 4
HCl A¤øxq ÿvi H2SO4

A B C
XY Gi AvYweK fi = 50 8}
K. d¨viv‡Wi Zwor we‡køl‡Yi cÖ_g m~ÎwU †jL| 1
L. WvBwg_vBj B_vi I B_vbj ci¯úi †Kvb ai‡bi mgvYy?
K. SATP Gi c~Y©iƒc Kx? 1
e¨vL¨v Ki| 2 L. Ag Gi Zwor ivmvqwbK Zzj¨v¼ 0.001118 g C-1 ej‡Z Kx
M. C-cv‡Îi `ªe‡Yi NbgvÎv‡K ppm GK‡K cÖKvk Ki| 3 †evSvq? e¨vL¨v Ki| 2
N. A I B `ªeY wgwkÖZ Ki‡j `ªe‡Yi cÖK…wZ Kxiƒc n‡e? M. 'A' †_‡K 'B' Gi cÖ¯w‘ Z mgxKiYmn †jL| 3
MvwYwZKfv‡e we‡kølY Ki| 4 N. A I C Gi g‡a¨ †KvbwU A¤øxq? we‡kølY Ki| 4
14

†mU : 01 Kzwgjøv †evW© 2022 welq †KvW : 1 7 7

mgq-1 NÈv 40 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-30
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv wZbwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } wb‡Pi DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi mwVK DËi `vI : 5 } wb‡Pi DÏxcKwU jÿ Ki Ges cÖk¸
œ ‡jvi h_vh_ DËi `vI :
A B C
30 °C 30 °C
350 mm Hg 450 mm Hg
550 mL 425 mL Zn Fe Cu
0.450 g 0.325 g
A-M¨vm B-M¨vm
K. UvB‡Uªkb Kx? 1 0.4 M Zn 0.5 M Fe 0.6 M Cu
E°Zn/Zn2+ = + 0.76 V E°Fe/Fe2+ = + 0.44 V E°Cu/Cu2+ = - 0.34 V
L. - OH g~jK A‡_©v-c¨viv wb‡`©kK †Kb? e¨vL¨v Ki| 2
M. DÏxc‡K DwjøwLZ ÷cKK© †Lvjv Ae¯’vq 40 °C ZvcgvÎvq K. cÖvBgvwi ÷¨vÛvW© c`v_© Kx? 1
M¨vm wgkÖ‡Yi †gvU Pvc wbY©q Ki| 3 L. NH3 I CH3NH2 Gi g‡a¨ †KvbwU †ewk ÿvixq? e¨vL¨v Ki| 2
N. DÏxc‡K DwjøwLZ 'A' I 'B' M¨v‡mi g‡a¨ †KvbwU Av`k© M. DÏxc‡K DwjøwLZ 'B' Aa©‡Kvl n‡Z 'C' Aa©‡Kv‡l 2 Kzj¤^
we`y¨r cÖevwnZ Ki‡j KZ MÖvg avZz mwÂZ n‡e? 3
M¨vm AvPiY n‡Z wePz¨wZ †ewk †`Lv‡e? we‡kølY Ki| 4
N. DÏxc‡K DwjøwLZ †Kvb `ywU Aa©‡Kvl Øviv m„ó †Kv‡li
2} wb‡Pi DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi mwVK DËi `vI :
EMF Gi gvb me‡P‡q AwaK? we‡kølY Ki| 4
6} wb‡Pi DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi mwVK DËi `vI :

50 ml 100 ml
0.5 M 0.1 M
HCl Na2CO3
A-cvÎ B-cvÎ
K. c¨vivwdb Kx? 1
K. SATP Kx? 1 L. DU©R wewµqvq ï®‹ B_vi eënvi Kiv nq †Kb? 2
L. RviY msL¨v I †hvRbxi g‡a¨ `ywU cv_©K¨ wjL| 2 M. DÏxc‡K DwjøwLZ 'A' cv‡Îi `ªeY‡K 600 mL `ªe‡Y cwiYZ
M. DÏxc‡Ki †hŠM¸‡jvi g‡a¨ †KvbwU R¨vwgwZK mgvYyZv Ki‡j NbgvÎvi cwieZ©b KZ n‡e? 3
cÖ`k©b Ki‡e? e¨vL¨v Ki| 3 N. cÖkgb †iLvi mvnv‡h¨ DÏxc‡K DwjøwLZ 'A' I 'B' `ªe‡Yi
N. DÏxc‡Ki (iii) bs †hŠMwU Ab¨ `ywU †hŠM A‡cÿv m¤ú~Y© cÖkg‡b eën„Z Dchy³ wb‡`©kK wbY©‡qi †hŠw³KZv
wfbœ GK ai‡bi mgvYyZv cÖ`k©b K‡i- hyw³mnKv‡i we‡kølY Ki| 4
we‡kølY Ki| 4 7} wb‡¤œi DÏxcKwU jÿ Ki Ges cÖkœ¸‡jvi h_vh_ DËi `vI :
3} wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi mwVK DËi `vI :
0.80 g f‡ii Avqib U¨ve‡jU‡K H2SO4 G `ªexf‚Z K‡i cÖvß 25 ml
'R'n‡jv `yB Kve©bwewkó A¨vjKvBj g~jK|
`ªeY‡K 0.1 M KMnO4 `ªeY Øviv UvB‡Uªkb K‡i Avqib U¨ve‡j‡Ui
K. d¨viv‡Wi cÖ_g m~ÎwU wjL| 1
weï×Zv hvPvB Kiv nj|
L. HCl(g) A‡cÿv NH3(g) Gi e¨vcb nvi †ewk †Kb? 2
K. Zwor PvjK ej Kx? 1
M. 'D' I 'B' Gi g‡a¨ Kxfv‡e cv_©K¨ Kiv hvq? mgxKiYmn
L. BF3 GKwU jyBm GwmW- e¨vL¨v Ki| 2 wjL| 3
M. DÏxc‡K DwjøwLZ c`v‡_©i NbgvÎv ppm GK‡K wbY©q Ki| 3 N. DÏxc‡Ki 'D' †hŠMwU A¨vjWj Nbxfeb bv K¨vwbRv‡iv
N. DÏxc‡Ki UvB‡Uªk‡b Avqi‡bi weï×Zv wbY©‡q Na2Cr2O7 wewµqv cÖ`k©b Ki‡e? we‡kølY Ki| 4
eënvi Kiv n‡j, †Kvb RviK c`v‡_©i mvnv‡h¨ Avqi‡bi 8} wb‡Pi DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi h_vh_ DËi `vI :
cwigvY wbY©q DËg? we‡kølY Ki| 4 KwZcq avZzi weRviY wefe Gi gvb wb‡¤œ †`qv nj-
4} wb‡Pi DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi h_vh_ DËi `vI : (i) A2+(aq)/A(s) = + 0.40 V
(ii) B3+(aq)/B(s) = + 1.66 V
GKwU M¨v‡mi 0 °C ZvcgvÎvq wewfbœ Ae¯’vq Pvc I AvqZb (iii) P2+(aq)/P(s) = + 0.44 V
wb¤œiƒc : K. 1, 3-weDUvWvBB‡bi ms‡KZ wjL| 1
Pvc (atm) 0.35 0.50 0.65 0.85 L. 1.5% NaOH Gi †gvjvwiwU KZ? 2
AvqZb (L) 3.80 2.66 2.05 1.56 M. DÏxc‡K DwjøwLZ (i) bs `ªeY I (ii) bs `ªeY‡K jeY †mZz
K. gy³ g~jK Kx? 1 Øviv ms‡hvM K‡i MwVZ †Kv‡li †gvU †Kvl wefe wbY©q
L. HNO3 A‡cÿv H3PO4 `yej © GwmW †Kb? 2 Ki| 3
M. DÏxc‡Ki M¨vmwUi †gvj msL¨v wbY©q Ki| 3 N. DÏxc‡K DwjøwLZ (iii) bs `ªeY‡K 'A' I 'B' avZzi wbwg©Z
N. DÏxc‡K DwjøwLZ M¨vmwU M¨v‡mi †Kvb m~Î‡K mg_©b cv‡Îi †KvbwU‡Z ivLv wbivc`? mwµqZvi µg w`‡q
Ki‡e? MvwYwZK hyw³mn we‡kølY Ki| 4 we‡kølY Ki| 4
15

ˆmU : 03 PÆMÖvg †evW© 2022 welq ˆKvW : 1 7 7

mgq-1 NÈv 40 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-30
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸ œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv wZbwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi DËi `vI : 5 } DÏxcKwU jÿ Ki Ges cÖk¸
œ ‡jvi DËi `vI :
30 °C
450 mm(Hg) 0.7 atm
600 mL 500 mL
0.63 g 0.42 g

A-M¨vm B-M¨vm
K. AbyeÜx A¤ø Kx? 1
K. gy³ g~jK Kx? 1
L. †Kvb cvwbi bgybvq BOD A‡cÿv COD Gi gvb †ewk
L. A¨v‡gvwbqv A‡cÿv A¨vwbwjb `yej
© ÿviK †Kb? 2 †Kb? 2
M. ÷cKK© †Lvjv Ae¯’vq M¨vm wgkÖ‡Y †gvU Pvc wbY©q Ki| 3 M. DÏxc‡Ki 'M' †hŠM cÖ¯w‘ Z‡Z †Kvb ai‡bi †gKvwbRg
N. D³ M¨vmØ‡qi g‡a¨ 'B' M¨v‡mi Zzjbvq 'A' M¨v‡mi Av`k© Abym„Z nq? e¨vL¨v Ki| 3
AvPiY †_‡K wePz¨wZ †ewk- we‡kølY Ki| 4 N. 'A' I 'B' †hŠ‡Mi g‡a¨ †KvbwU‡Z gvK©wbKf wbqg Abym„Z
2} DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi DËi `vI : nq? we‡kølY Ki| 4
6} DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi DËi `vI :
20 mL 100 mL
†mwg‡gvjvi †Wwm‡gvjvi 1.5 g
H2SO4 `ªeY MOH `ªeY †jvnv AvKwiK
+ 100 mL `ªeY
A-M¨vm B-M¨vm H2SO4
M Gi cvigvYweK fi = 23 A-cvÎ
K. Kvh©Kix g~jK Kx? 1 D³ `ªe‡Yi 20 mL †K UvB‡UªU Ki‡Z 0.03 M KMnO4 Gi 85 mL
L. e¨vL¨v Ki- †ebwRb B_vB‡bi GKwU cwjgvi| 2 cÖ‡qvRb nq|
M. 'B' cv‡Îi `ªe‡Yi NbgvÎv kZKiv GK‡K cÖKvk Ki| 3 K. U‡jb weKviK Kx? 1
N. DÏxc‡Ki (A + B) wgkÖ‡Yi cÖKw… Zmn pH wbY©q Ki| 4 L. wcwiwWb GKwU A¨v‡iv‡gwUK †hŠM- †Kb? 2
3} DÏxcKwU jÿ Ki Ges cÖk¸œ ‡jvi DËi `vI : M. A cv‡Î AvKwi‡K †fRv‡ji kZKiv cwigvY wbY©q Ki| 3
N. RviK wnmv‡e K2Cr2O7 e¨envi K‡i D³ wewµqvwU Avqb
4L, 0.3 atm 2L, 1.53 atm B‡jKUªb c×wZ‡Z mgZv weavb Ki| 4
5 gm 4 gm 7} DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi DËi `vI :
30 °C 30 °C
Zn - Hg
X-M¨vm Y-M¨vm (i) 'X' ¾¾¾® CH3 - CH3 + H2O
Mvp HCl
Zn - Hg
(ii) 'Y' ¾¾¾® CH3 - CH2 - CH3 + H2O
Mvp HCl
K. Av‡qv‡WvwgwZ UvB‡Uªkb Kx? 1
Z-cvÎ
L. Zxeª A¤ø I Zxeª ÿvi UvB‡Uªk‡b †Kvb wb‡`©kK Dc‡hvMx?
K. †iwmwgK wgkÖY Kx? 1 e¨vL¨v Ki| 2
L. diwgK GwmW weRviK- e¨vL¨v Ki| 2 M. 'X' †hŠM †_‡K Kxfv‡e 2° A¨vj‡Kvnj ˆZwi Kiv hvq?
M. DÏxc‡Ki 'X' M¨v‡mi AYyi msL¨v wbY©q Ki| 3 mgxKiYmn †`LvI| 3
N. Z cv‡Î 'X' M¨v‡mi Zzjbvq 'Y' M¨vm AwaK nv‡i e¨vwcZ N. †K›`ªvKlx© hyZ wewµqvq 'Y' †hŠM A‡cÿv 'X' †hŠM AwaK
nq- MvwYwZKfv‡e we‡kølY Ki| 4 mwµq- we‡kølY Ki| 4
4} DÏxcKwU jÿ Ki Ges cÖk¸œ ‡jvi DËi `vI : 8} DÏxcKwU jÿ Ki Ges cÖk¸ œ ‡jvi DËi `vI :
†mvWvjvBg G
(i) C6H5COONa ¾¾¾¾® 'P' + Na2CO3 (-) 25 °C (+)
D
ï®‹ B_vi
(ii) C6H5Cl + CH3Cl ¾¾¾¾® 'Q' + NaCl
Na avZz 0.1 M 2.0 M
XSO4 YSO4
K. RMS †eM Kx? 1
P-cvÎ Q-cvÎ
L. Pvj©‡mi m~Î †_‡K Kxfv‡e cigk~b¨ ZvcgvÎvi aviYv †`Iqv Av‡Q, E°X2+/X = - 0.44 V, E°Y2+/Y = + 0.34 V
cÖwZôv Ki‡e? 2
K. AmvgÄm¨ wewµqv Kx? 1
M. 'P' †hŠM †_‡K Kxfv‡e Kve©wjK GwmW ˆZwi Ki‡e?
L. †Wwm‡gvjvi `ªeY GKwU cÖgvY `ªeY- e¨vL¨v Ki| 2
mgxKiYmn e¨vL¨v Ki| 3
M. DÏxc‡Ki †KvlwUi †gvU wefe MYbv Ki| 3
N. B‡jKUªbvKlx© cÖwZ¯’vcb wewµqvq 'P' A‡cÿv 'Q' †hŠM N. 'Q' cvÎwU 'X' avZz Øviv wbwg©Z n‡j †KvlwU `xN©mgq
AwaK mwµq- †i‡Rvb¨vÝ wP‡Îi mvnv‡h¨ we‡kølY Ki| 4 msiÿ‡Yi †ÿ‡Î gZvgZ Dc¯’vcb Ki| 4
16

†mU : 03 wm‡jU †evW© 2022 welq †KvW : 1 7 7

2L 1 dm3
HBr Gi mwnZ 'C' Drcbœ K‡i|
1 atm
1.36 g 2.21g 1.25 gL-1 K. jeY †mZz Kx? 1
750 m.m 150 kPa
A B C
L. SO3 †hŠMwU B‡jKUªbvKl©x weKviK †Kb? 2

K. ev¯Íe M¨vm Kv‡K e‡j? 1 M. DÏxc‡K B †hŠM n‡Z C †hŠM cÖ¯‘wZi †KŠkj Av‡jvPbv
Ki| 3
L. cvwb‡Z BOD 5 mg/L ej‡Z Kx eyS? 2
N. DÏxc‡K A I C †hŠM `ywU wfbœ ai‡bi mgvYyZv cÖ`k©b
M. DÏxc‡K 25°C ZvcgvÎvq A I B M¨vm wgkÖ‡Yi †gvU Pvc
K‡i- we‡kølY Ki| 4
wbY©q Ki| 3
6}
N. DÏxc‡K B I C cv‡Îi M¨vmmg~‡ni g‡a¨ †KvbwU AwaK
680 mL 440 mL 250 mL
nv‡i e¨vwcZ n‡e? we‡kølY Ki| 4 0.15 M 0.1 M 0.25 M
HCl `ªeY NaOH Na2CO3
2} 20°C ZvcgvÎvq LPG M¨v‡mi wmwjÛv‡i 12 kg weD‡Ub M¨vm I II III
Av‡Q| wmwjÛv‡ii AvqZb 20 L| K. †gvjvwiwUi msÁv `vI| 1
K. TDS Kx? 1 L. †`LvI †h, Sn RviK I weRviK Dfq wnmv‡e KvR K‡i| 2
2+

L. FeCl3 jyBm GwmW †Kb? e¨vL¨v Ki| 2 M. DÏxc‡K (III) bs cv‡Îi `ªe‡Y Dcw¯’Z Na+ Gi msL¨v
M. DÏxc‡K M¨vm wmwjÛv‡ii Pvc wbY©q Ki| 3 wbY©q Ki| 3
N. DÏxc‡K DwjøwLZ wmwjÛv‡i M¨vm fwZ©i mgq M¨v‡mi †Kvb N. DÏxc‡Ki wZbwU `ªeY GK‡Î wgwkÖZ Ki‡j `ªe‡Yi cÖKw… Z
m~‡Îi cÖ‡qvM NU‡e? we‡kølY Ki| 4 †Kgb n‡e Zv MvwYwZKfv‡e we‡kølY Ki| 4

K2Cr2O7/H+ jNy NaOH 7}

3} A ¾¾¾¾® B ¾¾¾¾® C 50 mL 0.1 M 0.5 M
[O] Zn2+ Ag+
'A' †hŠMwU `yB Kve©bwewkó| B †hŠMwU 2, 4, DNPH Gi mwnZ njy`
cvÎ-1 cvÎ-2
Aat‡ÿc †`q Ges †dnwjs `ªeY‡K weRvwiZ K‡i|
25 °C ZvcgvÎvq E° Zn/Zn +2 = 0.76 V Ges E° Ag/Ag + = - 0.79 V.
K. AcÖwZmg Kve©b Kv‡K e‡j? 1
K. Zwor ivmvqwbK Zzj¨v¼ Kv‡K e‡j? 1
L. CHCl3 †K iwOb †evZ‡j ivLv nq †Kb? 2
L. Kcv‡ii cÖgvY weRviY wefe + 0.34 V ej‡Z Kx eyS? 2
M. DÏxc‡Ki B †hŠM n‡Z C †hŠM cÖ¯w‘ Zi †KŠkj eY©bv Ki| 3
M. DÏxcK cvÎ-1 Gi avZe Avqb‡K m¤ú~Y© mwÂZ Ki‡Z KZ
N. DÏxc‡K B †hŠM K¨vwbRv‡iv Ges A¨vjWj Nbxfeb Kzj¤^ we`y¨‡Zi cÖ‡qvRb? wbY©q Ki| 3
wewµqvi g‡a¨ †KvbwU cÖ`k©b K‡i? mgxKiYmn we‡kølY N. DÏxc‡Ki cvÎ-1 I cvÎ-2 Øviv MwVZ †Kv‡l ¯^Ztù‚Zf
© v‡e
Ki| 4 we`y¨r Drcv`b n‡e wKbv? we‡kølY Ki| 4
4 } `ywU †hŠM A I B hv‡`i AvYweK ms‡KZ h_vµ‡g C5H10 I C5H8. 8} 2+ 2+
Zn(s) + Ni (aq) (0.1 M) ® Zn (aq)(0.1 M) + Ni(s)
K. M¨vgvw·b MvVwbK ms‡KZ †jL| 1 Zn Gi cÖgvY RviY wefe = 0.76 V Ges E°cell = 0.51 V.
L. †dbj A¨v‡iv‡gwUK †hŠM †Kb? e¨vL¨v Ki| 2 K. d¨viv‡W aªæeK Kx? 1
M. DÏxc‡K 'A' †hŠMwU‡K I‡Rv‡bvjvBwmm Ges Av`ª© L. W¨vwb‡qj †Kv‡li †Kvl wewµqv †jL| 2
we‡køl‡Yi gva¨‡g H - CHO Ges CH 3 - CH 2 - CH 2 - CHO M. 25°C ZvcgvÎvq 2+
Ni (aq)(0.1M) ® Ni(s) Gi Aa©‡Kvl
cvIqv hvq| Dchy³ wewµqvmn A Gi MVb Ges bvg †jL| 3 wefe wbY©q Ki| 3
N. B †hŠ‡Mi m¤¢ve¨ mgvYymg~‡ni g‡a¨ †KvbwU A¤øawg©Zv N. Zn Gi cv‡Î FeSO4 `ªeY ivLv hv‡e Kx? MvwYwZKfv‡e
cÖ`k©b K‡i? mgxKiYmn we‡kølY Ki| 4 we‡kølY Ki| [E°Fe2+/Fe = - 0.44 V] 4
17

†mU : 03 ewikvj †evW© 2022 welq †KvW : 1 7 7

mgq-1 NÈv 40 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-30
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv wZbwU cÖ‡kœi DËi w`‡Z n‡e|]
HNO3 5}
C
400°C H2SO4
C2H2 ¾¾® B 10% NaOH Na2CO3
1} Fe CH3Cl
D
Na2CO3 0.3 M 0.3 M
dryAlCl3 solution solution solution
K. jeY †mZz Kv‡K e‡j? 1 A B C
L. LiAlH4 GKwU †m‡KÛvwi ÷¨vÛvW© c`v_©-e¨vL¨v Ki| 2 K. BOD Kv‡K e‡j? 1
M. B n‡Z D cÖ¯w‘ Zi †KŠkj e¨vL¨v Ki| 3 L. cvwb Dfag©x c`v_©-e¨vL¨v Ki| 2
N. C I D †hŠ‡Mi g‡a¨ †KvbwU B‡jK‡UªvwdwjK cÖwZ¯’vcb M. A-`ªe‡Yi NbgvÎv †gvjvi GK‡K wbY©q Ki| 3
wewµqvi †ÿ‡Î AwaK mwµq? we‡kølY Ki| 4 N. B I C `ªe‡Yi NbgvÎv ppm GK‡K GKB n‡e wK-bv?
2} G MvwYwZKfv‡e we‡kølY Ki| 4
6}
X M¨vm Y M¨vm X+Y
X Y
25 ºC 25 ºC 10 L 8L
1M 1M M¨v‡mi wgkÖY
25°C 25°C
X2(SO4)3 YSO4 25°C
50 kPa 100 kPa
†Kvl-A 8.885 g 4.423 g 72.22 kPa
X+3/X ® - 1.66 V
Y+2/Y ® + 0.34 V
A-cvÎ B-cvÎ C-cvÎ
B2+/B ® - 0.44 V
K. Zwor ivmvqwbK Zzj¨v¼ Kv‡K e‡j? 1
K. AvB‡mv_vg© Kv‡K e‡j? 1
L. †cÖv‡cb wg‡_‡bi mg‡MvÎK-e¨vL¨v Ki| 2
L. 2-†eªv‡gvweD‡Ub Av‡jvK mwµq wK-bv? e¨vL¨v Ki| 2
M. A-cv‡Îi M¨v‡mi AvYweK fi wbY©q Ki| 3
M. A †KvlwUi E.M.F wbY©q Ki| 3
N. cÖ`Ë DcvË n‡Z Wvë‡bi AvswkK Pvc m~Î hvPvB Ki| 4
N. A †Kv‡li YSO4 Gi `ªeY B avZzi cv‡Î msiÿY Kiv hv‡e
7} (i) Fe(s)/Fe2+(aq) || Cu2+(aq)/Cu(s)
wKbv? we‡kølY Ki| 4
(ii) Ag(s)/Ag+(aq) || Zn2+(aq)Zn(s)
3}
†`Iqv Av‡Q, E°Fe/Fe2+ = 0.44 V; E°Cu2+/Cu = 0.34 V
25 mL 0.2 M 15 mL acidic E° Ag/Ag+ = - 0.799 V; E°Zn2+/Zn= - 0.76 V
H2C2O4 K2Cr2O7 FeSO4
solution solution solution K. d¨viv‡Wi cÖ_g m~ÎwU †jL| 1
A B C
L. e¨vL¨v Ki HClO4 GKwU kw³kvjx A¤ø n‡jI Gi AbyeÜx
K. KvBivj Kve©b Kv‡K e‡j? 1 ÿviKwU `ye©j| 2
L. e¨vL¨v Ki : 1-†K¬v‡iv-1-nvB‡Wªvw· B‡_b GKwU Av‡jvK M. †Kvl (i) Gi g‡a¨ 10 min hver 160 mA we`y¨r cÖevn
mwµq †hŠM| 2 Pvjbv Ki‡j K¨v‡_v‡W Kx cwigvY avZz mwÂZ n‡e? MYbv
M. B I C `ªe‡Yi g‡a¨ msNwUZ wewµqvwU Avqb-B‡jKUªb Ki| 3
c×wZ‡Z mgZv Ki| 3 N. DÏxc‡Ki †Kvb †Kvl wewµqvwU ¯^Ztù‚Zf © v‡e NU‡e?
N. C cv‡Îi Avqi‡bi cwigvY wbY©q Ki‡Z A I B Gi g‡a¨ MvwYwZKfv‡e we‡kølY Ki| 4
†Kvb `ªeYwU Dchy³ we‡kølY Ki| 4 8} mv`v †auvqv
4} CH3 CH3 HCl NH3
C=C CCl4 Zn
H CH3 + O3 ¾¾¾¾® A ¾¾® B + C + ZnO
Ozonide, D H2O 100 cm
K. A¨v‡fv‡M‡Wªvi msL¨v Kv‡K e‡j? 1 K. GwmW e„wó Kx? 1
L. †gvjvj `ªeY ZvcgvÎvi Dci wbf©ikxj wK bv e¨vL¨v Ki| 2 L. cvwbi BOD 5 mg/L ej‡Z Kx eySvq? 2
M. wewµqvi mvnv‡h¨ †`LvI †h, B I C †hŠ‡Mi Kvh©Kix g~jK M. DÏxc‡Ki HCl cÖvšÍ n‡Z KZ `~i‡Z¡ mv`v †auvqv ˆZwi n‡e
wfbœ| 3 Zv wbY©q Ki| 3
N. B I C †hŠ‡Mi g‡a¨ wbDwK¬IwdwjK ms‡hvRb wewµqv N. KvPb‡ji Af¨šÍ‡ii M¨vm `ywUi wewµqv AbyeÜx
†KvbwU AwaK mwµq? we‡kølY Ki| 4 A¤ø-ÿviK e¨vL¨v Kiv m¤¢e wK-bv? we‡kølY Ki| 4
18

†mU : 03 w`bvRcyi †evW© 2022 welq †KvW : 1 7 7

mgq-1 NÈv 40 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-30
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvMmnKv‡i co Ges mswkøó cÖk¸
œ ‡jvi h_vh_ DËi `vI|
†h †Kv‡bv wZbwU cÖ‡kœi DËi w`‡Z n‡e|]
1} R R
| |
25°C 25°C 5} (i) R - C - Cl + KOH(aq) ® R - C - OH + KCl
500 mm(Hg) 1 atm | |
400 mL 300 mL R R
[O] [O]
(ii) R - CH 2 - OH ¾¾¾¾¾¾® P ¾¾¾¾¾¾® Q
K 2Cr 2O 7 + H 2SO 4 K 2Cr 2O 7 + H 2SO 4
A M¨vm B M¨vm
K. †iwmwgK wgkÖY Kx? 1
K. wcwcGg Kv‡K e‡j? 1 L. NH3 GKwU jyBm ÿviK-e¨vL¨v Ki| 2
L. B_vbj I †cÖvcvbj ci¯úi mg‡MvÎK-e¨vL¨v Ki| 2 M. DÏxc‡Ki (i) bs wewµqvi †KŠkj eY©bv Ki| 3
M. cÖ`Ë ZvcgvÎvq ÷cKK© Ly‡j w`‡j M¨vm wgkÖ‡Yi †gvU Pvc N. 'P' I 'Q' †hŠMØ‡qi g‡a¨ †KvbwU wbDwK¬IwdwjK ms‡hvRb
wbY©q Ki| 3 wewµqv cÖ`k©b Ki‡e? we‡kølY Ki| 4
6}
N. DÏxc‡Ki †Kvb M¨v‡m AYyi msL¨v †ewk Av‡Q? 2gFe KMnO4 K2Cr2O7
+ 0.35 M +
MvwYwZKfv‡e we‡kølY Ki| 4 H2SO4(dil) 15 mL H2SO4
2} Y M¨vm 20 mL
T = 273 K
(L-atm)

X M¨vm `ªeY-L `ªeY-M `ªeY-N

L-`ªeY‡K m¤ú~Yf
© v‡e RvwiZ Ki‡Z M `ªe‡Yi cÖ‡qvRb|
K. cig k~b¨ ZvcgvÎv Kx? 1
P(atm)
L. †cÖvcv‡bvb U‡UvgvwiZv cÖ`k©b K‡i-e¨vL¨v Ki| 2
K. Kvh©Kix g~jK Kx? 1 M. Avqb-B‡jKUªb c×wZ‡Z L-`ªeY I N-`ªe‡Yi wewµqvi
L. †gvjvwiwU ZvcgvÎv wbf©ikxj-e¨vL¨v Ki| 2 mgZvK…Z mgxKiY †jL| 3
M. 25°C ZvcgvÎvq 'Y' M¨v‡mi GKwU AYyi MwZkw³ MYbv N. DÏxc‡Ki L-`ªe‡Y †hvMK…Z †jvnvwU weï× wK-bv
Ki| 3 MvwYwZKfv‡e we‡kølY Ki| 4
7}
N. DÏxc‡Ki 'Y' M¨vmwU †Kvb Ae¯’vq 'X' M¨v‡mi b¨vq AvPiY 5% 0.1 M
Na2CO3 HCl
Ki‡e? we‡kølY Ki| 4
`ªeY `ªeY
3} Pd,BaSO4 50 mL 500 mL
CnHn + H2 ¾¾¾-¾® B
(A) 25°C
n=2
cvÎ-A cvÎ-B
K. mgvYyKiY wewµqv Kx? 1
†ebwRb L. Kve©b †UUªv‡K¬vivBW GKwU ˆRe †hŠM-e¨vL¨v Ki| 2
K. AbyeÜx A¤ø Kx? 1 M. B-cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K wnmve Ki| 3
N. A I B cvÎØ‡qi `ªeY wgwkÖZ Ki‡j wgwkÖZ `ªe‡Yi cÖKw… Z
L. K2Cr2O7 GKwU RviK c`v_©-e¨vL¨v Ki| 2
Kxiƒc n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
M. 'A' †hŠM †_‡K Kxfv‡e †ebwRb cÖ¯Z ‘ Ki‡e? 3
8} (+) (-) G
N. 'A' I 'B' Gi g‡a¨ †KvbwU A¤øag©x? we‡kølY Ki| 4 KNO3

4} HNO3
A
Mvp H2SO4, 60°C 25 °C
0.1 M 0.2 M
CuSO 4 FeSO4 CuSO4
P-†Kvl Q-†Kvl
CH3Cl
B
Abv`ª© AlCl3 †`Iqv Av‡Q, E°Fe2+/Fe = - 0.44 V Ges E°Cu2+/Cu = + 0.34 V
K. wb‡`©kK Kx? 1 K. Zwor we‡køl¨ Kx? 1
L. cvwbi BOD 5 ppm ej‡Z Kx eyS? 2
L. †Kv‡l jeY †mZz e¨envi Kiv nq †Kb? 2
M. DÏxc‡Ki P-†Kv‡l 5A we`y¨r 10 wgwbU Pvjbv Ki‡j
M. 'A' cÖ¯w‘ Zi wewµqvwUi †KŠkj e¨vL¨v Ki| 3
K¨v‡_v‡W Kx cwigvY avZz mwÂZ n‡e? 3
N. 'A' I 'B' Gi g‡a¨ †KvbwU B‡jK‡UªvwdwjK cÖwZ¯’vcb N. DÏxc‡Ki Q †Kv‡li †Kvl wewµqv ¯^Ztù‚Zf
© v‡e NU‡e wK?
wewµqvq A‡_©v-c¨viv mgvYy Drcbœ Ki‡e? we‡kølY Ki| 4 MvwYwZKfv‡e we‡kølY Ki| 4
19

†mU : 01 gqgbwmsn †evW© 2022 welq †KvW : 1 7 7

K. cÖgvY `ªeY Kx? 1

L. H2O2 RviK I weRviK Dfq wn‡m‡e KvR K‡i- e¨vL¨v
Ki| 2
M. A n‡Z B †hŠM Drcv`‡bi †KŠkj Av‡jvPbv Ki| 3
N. C †hŠ‡Mi 2q cÖwZ¯’vcK †Kvb Ae¯’v‡b hv‡e? AbyiYb
KvVv‡gvmn e¨vL¨v Ki| 4
2} DÏxcK Abymv‡i wb‡Pi cÖk¸
œ ‡jvi DËi `vI :
1.28 g Aweï× †jŠn K. UvB‡Uªkb Kx? 1
0.04 M
K2Cr2O7 L. ˆRe †hŠ‡Mi Am¤ú„³Zv wbY©‡qi GKwU cixÿv wewµqvmn
H2SO4 `ªeY eY©bv Ki| 2
M. DÏxc‡Ki wPÎ-I Gi †KvlwUi K¨v‡_v‡W KZwU Ni-cigvYy
50 mL 20 mL
Rgv n‡e Zv wbY©q Ki| 3
A B N. DÏxc‡Ki wPÎ-2 Gi †KvlwUi †Kvl wef‡bi gvb wbY©q
K. K¨vwU‡bkb Kx? 1 Ki| 4
L. C2H2O4 GKwU cÖvBgvwi ÷¨vÛvW© c`v_©- e¨vL¨v Ki| 2 6} DÏxcK Abymv‡i wb‡Pi cÖ‡kœi DËi `vI :
M. A cv‡Îi `ªeY †_‡K cÖgvY Ae¯’vq KZ cm3 H2 M¨vm
B gas
Drcbœ n‡e? wbY©q Ki| 3
PV ® (L-atm)

N. A cv‡Îi 40 mL `ªeY‡K hw` B cv‡Îi `ªeY RvwiZ K‡i A gas

Z‡e A cv‡Îi Fe Gi weï×Zv wbY©q Ki| 4
3} wb‡Pi DÏxc‡Ki Av‡jv‡K DËi `vI :
8.885 g P ® (atm)
50 kPa K. gy³ g~jK Kx? 1
10 dm 3
25 ºC
L. †mvwWqvg avZz‡K †K‡ivwm‡bi g‡a¨ Wzwe‡q ivLv nq †Kb?
40 ºC e¨vL¨v Ki| 2
A- M¨vm
10 dm 3 M. M¨v‡mi m~Îmg~n e¨envi K‡i A M¨v‡mi Rb¨ cÖ‡hvR¨
2.423 g mgxKiYwU cÖwZcv`b Ki| 3
20 kPa cvÎ-3
2.0 dm 3 N. B-M¨v‡mi Rb¨ †iLvwU A-M¨v‡mi gZ bv nIqvi KviY
25 ºC e¨vL¨v Ki| 4
B-M¨vm 7}
K. d¨viv‡Wi cÖ_g m~ÎwU †jL| 1
5% (w/V) 0.1 M A+ B x mL
L. eªb‡÷W-jvDixi gZev` Abymv‡i D`vniYmn A¤ø I Na2CO3 Na2CO3 0.1 M
ÿv‡ii msÁv `vI| 2 50 mL 50 mL HCl
M. A I B Gi †Kvb M¨vmwU 3bs cv‡Î Av‡M e¨vwcZ n‡e? A B C D
MvwYwZKfv‡e e¨vL¨v `vI| 3 K. †iwmwgK wgkÖY Kx? 1
N. A I B M¨vm‡K cvÎ-3 G wgwkÖZ Ki‡j †gvU Pvc KZ n‡e L. ClCH2COOH I CH3COOH Gi g‡a¨ †KvbwU AwaK
Zv wn‡me Ki| 4 A¤øxq Ges †Kb? e¨vL¨v Ki| 2
[O] [O]
4} (i) A †hŠM¾¾¾¾¾¾® B †hŠM ¾¾¾¾¾¾¾® C †hŠM M. C-cv‡Îi wgkÖ‡Yi NbgvÎv wbY©q Ki| 3
K2Cr2O7 + H2SO4 K2Cr2O7 + H2SO4
NaOH + CaO
N. C I D cv‡Îi wgkÖY GKwÎZ Ki‡j hw` c~Y© cÖkgb N‡U
(ii) C †hŠM ¾¾¾¾¾® CH4 + Na2CO3(CaO) Z‡e x-Gi gvb wbY©q Ki| 4
D
K. RviY msL¨v Kx? 1 8} CH3CH2Br + KOH(aq) ® Y + KBr
L. H2O GKwU A¨v‡çv‡UwiK c`v_©- e¨vL¨v Ki| 2 K. RviY msL¨v Kx? 1
M. B I C †hŠ‡Mi g‡a¨ †KvbwU †K›`ªvKlx© hyZ wewµqv cÖ`k©b L. COD Gi gvb BOD Gi gv‡bi †P‡q †ewk nq †Kb? 2
Ki‡e Zv e¨vL¨v Ki| 3 M. DÏxc‡Ki wewµqvwUi †KŠkj e¨vL¨v Ki| 3
N. B I C †hŠ‡Mi Kvh©Kwi g~jK Kxfv‡e kbv³ Ki‡e? N. Y-†hŠM †_‡K A¨vjwKb cvIqv m¤¢e wKbv? hyw³mn we‡kølY
mgxKiYmn †jL| 4 Ki| 4
20

XvKv †evW© 2023 welq †KvW : 1 7 7

†mU : K mgq-25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-25
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. †KvbwU A‡_©v-c¨viv wb‡`©kK? 11. †Kvb wb‡`©k‡Ki pH mxgv 8-10 Gi g‡a¨? g wb‡Pi DÏxcKwU jÿ Ki Ges 20 I 21
K - NO2 L - SO3H K †db&jd_¨vwjb L wg_vBj †iW bs cÖ‡kœi DËi `vI :
M - NHCOCH3 N - CHO M wg_vBj A‡iÄ N _vBgj eø– C3H7Br + KOH (alc.)
2. cvwb‡Z Av`k© DO Gi gvb wcwcGg O3, Zn/H2O
g wb‡Pi DÏxcKwU jÿ Ki Ges 12 I 13 B+C
GK‡K KZ? ¾¾® A CCl4
bs cÖ‡kœi DËi `vI : D D
K2 L6 Br2
50 mL, 0×2 M Na2C2O4 º X mL 0×1 M
M 10 N 14 A, B, C Ges D ˆRe †hŠM|
KMnO4
3. †KvbwU‡Z ÿvi ag© we`¨gvb? 20. †hŠM 'A' †KvbwU?
12. 'X' Gi AvqZb KZ wgwjwjUvi?
K CH3CHO L CH3CH2OH
K 20 L 40 K †cÖvcvbj L †cÖvcvb¨vj
M N
M 60 N 80 M †cÖvwcb N †cÖvcvBb
4. g¨vM‡bwmqvg Kve©vB‡W Kve©‡bi RviY gvb 13. wewµqvq Drcbœ M¨vm n‡Z- 21. †hŠM 'B' I 'C' Gi †ÿ‡Î cÖ‡hvR¨ Giv
KZ? i. ˆRe GwmW ˆZwi Kiv hvq DfqB-
K-4 L-1 ii. Kve©‡bU †hŠM ˆZwi Kiv hvq i. †dnwjs `ªe‡Yi mv‡_ wewµqv K‡i
M+1 N+4
iii. BDwiqv ˆZwi Kiv hvq ii. 2, 4-DNPH Gi mv‡_ wewµqv K‡i
g wb‡Pi DÏxcKwU jÿ Ki Ges 5 I 6 bs
wb‡Pi †KvbwU mwVK? iii. LiAlH4 Øviv 1° A¨vj‡Kvnj ˆZwi K‡i
cÖ‡kœi DËi `vI :
+ Ki L i I ii
H wb‡Pi †KvbwU mwVK?
RCN + 2H2O ¾¾¾® A + B(g)
M i I iii N i, ii I iii
5. †hŠM 'A' Gi mg‡MvÎxq cÖ_g m`m¨- Ki L i I ii
14. wMÖMbvW© weKviK e¨envi K‡i †KvbwU
i. GKwU weRviK M i I iii N i, ii I iii
†_‡K 2° A¨vj‡Kvnj ˆZwi Kiv hvq?
ii. hyZ wewµqv †`q 22. 0×5 mol L-1 H2SO4 `ªe‡Y H+ Gi NbgvÎv
K CH3OH L HCHO
iii. sp2
msKwiZ KZ wcwcGg?
M CH3CH2OH N CH3CHO
wb‡Pi †KvbwU mwVK? K 10,000 L 1,000
15. A¨vgvMv †jLwP‡Î †KvbwU AwaK FYvZ¥K
Ki L i I ii M 100 N 10
wePz¨wZ †`Lvq?
M i I iii N i, ii I iii 23. A¨v‡gvwbqvg †K¬vivBW I K¨vjwmqvg
K H2 L NH3
6. †hŠM 'B' Gi Rb¨ †KvbwU cÖ‡hvR¨? A·vBW wewµqv K‡i STP †Z 44.8 L
M He N CO2
K GwU B‡jKUªbvKl©x weKviK NH3 M¨vm cÖ¯Z
‘ Ki‡Z e¨en„Z K¨vjwmqvg
16. OH- Gi AbyeÜx ÿvi †KvbwU?
L GwU jyBm ÿvi A·vB‡Wi cwigvY KZ?
K O2- L H2 O
M GwU RviK M H3 O+ N O2 K 56g L 28g
N GwU Av`k© M¨vm 17. †Kvb wgkÖYwU Wvë‡bi AvswkK Pvc m~Î M 14g N 7g
7. Aw·‡R‡bi Zzj¨ fi KZ? †g‡b P‡j? 24. †KvbwU RviY-weRviY wewµqv?
K 64 L 32 K NH3, HCl L C2H6, N2 K CaCO3 ¾¾® CaO + CO2
M 16 N8 D
M SO2, H2S N SO2, O2
8. †KvbwUi Zwor cwievwnZv AwaK? L NaOH + HCl ¾® NaCl + H2O
18. SnO2 Gi ÿviKZ¡ KZ?
K Be L Al M CaF 2 + 2AgNO3 ¾® 2AgF + Ca(NO 3) 2
K2 L4
M Cu N Sc N 2H2S + SO2 ¾® 2H2O + 3S
M6 N8
9. bvBUªvBj g~jK †KvbwU? 1
19. MwjZ A¨vjywgbvi ga¨ w`‡q 30 A¨vw¤úqvi 25. Pt, H (g)/H+ (aq) || Cu2+ (aq)/Cu(s).
2 2
K - NO2 L - NO
we`y¨r 90 wgwbU hver cÖevwnZ Ki‡j E°Cu2+ (aq)/Cu(s) = + 0×34 V †KvlwUi Rb¨
M - CNO N - CN
10. †KvbwU †K›`ªvKl©x ms‡hvRb wewµqv †`q? K¨v‡_v‡W KZ MÖvg avZz Rgv n‡e? BGgGd Gi gvb †KvbwU?
K CH3 - CH3 L CH2 = CH2 K 7×27 L 15×10 K 0×00 V L + 34 V
M CH3CHO N CH3CH2OH M 21×82 N 45×32 M - 34 V N + 0×17 V
21

†mU : L ivRkvnx †evW© 2023 welq †KvW : 1 7 7

5. †KvbwU me‡P‡q †ewk kw³kvjx weRviK? K H2CO3 L CO2 wb‡Pi †KvbwU mwVK?
K Li L Na M H2 O N CO32-
MK N Ag K i I ii L ii I iii
14. †Kvb RviK c`v_©wU me©vwaK B‡jKUªb
6. †Kvb ZworØviwU RviY cÖwµqv wb‡`©k MÖnY K‡i? M i I iii N i, ii I iii
K‡i? K K2Cr2O7 L KMnO4 21. DÏxcK Abymv‡i-
K Zn2+/Zn L Zn/Zn2+ M H2C2O4 N H2 O2
i. A-GKwUA¨v‡ivg¨vwUK †hŠM
M Cu2+/Cu N H+/H2, Pt 15. 2Na2S2O3 + l2 ¾® Na2S4O6 + 2Nal
7. ev¯Íe M¨v‡mi mgxKiY †KvbwU? ii. B-†hŠMwU A¨vwjd¨vwUK †hŠM
wewµqvwU‡Z-
K PV = nRT i. Na2S2O3 RvwiZ
n‡q‡Q iii. B-†hŠ‡Mi cÖwZ¯’vcK A‡_©v-c¨viv
L PV = RT
weRvwiZ n‡q‡Q
ii. l2 wb‡`©kK
( n2a
)
M P + 2 (V - nb) = nRT
V iii. S Gi RviY gvb n«vm †c‡q‡Q wb‡Pi †KvbwU mwVK?
1 wb‡Pi †KvbwU mwVK? K i I ii L ii I iii
N PV = mNc2
3 K i I ii L ii I iii
M i I iii N i, ii I iii
8. SATP †Z 2 †gvj O2 M¨v‡mi AvqZb M i I iii N i, ii I iii
KZ? 16. AgNO3 Gi GKwU `ªe‡Y 60 wgwbU 5A 22. †KvbwU bb A¨v‡iv‡gwUK †hŠM?
K 22×789 L L 24×789 L we`y¨r Pvjbv Ki‡j K¨v‡_v‡W KZ MÖvg Ag K †n·v †K¬v‡iv‡ebwRb
M 45×578 L N 49×578 L Rgv n‡e? L mvB‡K¬v‡n‡·b
g wb‡Pi DÏxcKwU jÿ Ki Ges 9 I 10 bs K 8×766 L 16×812 M wcwiwWb
cÖ‡kœi DËi `vI : M 20×145 N 24×854
N Kve©wjK GwmW
Y(g)
17. wg_vbwqK GwmW wewµqv K‡i-
Pd; BaSO4
i. NaHCO3 Gi mv‡_ 23. B_vBb + H2 X
25°C
X(g)
ii. jyKvm weKviK Gi mv‡_
PV

iii. U‡jb weKvi‡Ki mv‡_ DÏxc‡Ki 'X' †hŠM †KvbwU?

wb‡Pi †KvbwU mwVK? K CH2 = CH2 L CH3 - CH3
P

K i I ii L ii I iii M C6H6 N C6H12

Y-M¨v‡mi cigvYywUi me©‡kl kw³¯Í‡ii
B‡jKUªb web¨vm ns np , †hLv‡b n = 2
2 4 M i I iii N i, ii I iii 24. 20 I 30 †gvj msL¨vwewkó h_vµ‡g A I
9. STP †Z 0×25 mol Y M¨v‡mi AYyi fi 18. †KvbwUi e¨vcb nvi me‡P‡q †ewk? B M¨vmØ‡qi wgkÖ‡Yi †gvU Pvc 12 atm

KZ? K weD‡Ub L †cÖ

v ‡cb n‡j A M¨v‡mi AvswkK Pvc KZ n‡e?
K 3×5 g L 7g M B‡_b N wg‡_b K 2×7 atm L 4×8 atm
M 8g N 16g 19. wd«‡Wj µvdU A¨vjKvB‡jkb wewµqv M 7×2 atm N 8×4 atm
10. DÏxc‡Ki X-M¨vm- †Kvb ai‡bi? 25. GK †gvj M¨v‡mi MwZkw³ mgxKiY
i. Gi †cÖlY ¸Yv¼ Z = 1 K B‡jK‡UªvwdwjK hyZ †KvbwU?
ii. PV = nRT m~Î †g‡b P‡j L B‡jK‡UªvwdwjK cÖwZ¯’vcb RT
iii. Gi AYymg~‡ni g‡a¨ AvKl©Y ej K 3/2 L 3/2 nRT
M wbDwK¬IwdwjK cÖwZ¯’vcb NA
we`¨gvb N AcmviY M 3/2 RT N 2/3 RT
22

†mU : K h‡kvi †evW© 2023 welq †KvW : 1 7 7

K NH4+ L H2 O IUPAC bvg n‡jv-

10. wb‡Pi †Kvb †hŠMwU cvKv Kjvq we`¨gvb?
M OH- N NH3
K A¨vgvBj Gwm‡UU K But - 1 - en - 2 - oic acid
3. †ebwRb ej‡q - COOH g~jK Dcw¯’Z L But - 2 - en - 2 - oic acid
_vK‡j KZ bs Kve©‡b B‡jKUªb †ewk L A±vBj Gwm‡UW
M But - 2 - en - 1 - oic acid
_v‡K? M B_vBj weDUv‡iU N Buten - 1 - oic acid
K2 L3 N †ebRvBj Gwm‡UU 19. A·vwjK GwmW‡K NaOH Øviv
M4 N6
11. Av‡jvK mwµq mgvYy nIqvi Rb¨ UvB‡Uªk‡bi †ÿ‡Î e¨en„Z wb‡`©kKwU
4. w¯’i AvqZ‡b wbw`©ó ¯Í‡ii Av`k© M¨v‡mi
P
A¨vj‡K‡bi me©wb¤œ Kve©b msL¨v n‡e- n‡jv-
ebvg T †jLwPÎ n‡e- K7 L8
T K †dbjd_¨vwjb L wg_vBj †iW
P P M9 N 10 M wg_vBj A‡iÄ N _vBgj eø–
K T LT
T T
12. w¯’i Pv‡c 0 °C ZvcgvÎvq O2 M¨v‡mi 20. †KvbwU weRviK c`v_©?
P P
AvqZb 3×5 L n‡j 20 °C ZvcgvÎvq K KMnO4 L FeSO4
M T N T
M¨vmwUi AvqZb n‡e- M H2SO4 N K2Cr2O7
T T
w
5. mÂiYkxj p B‡jKUªb _vKv m‡Ë¡I wb‡Pi K 3×25L L 3×76L 21. wb‡Pi †KvbwUi Rb¨ w cÖ‡hvR¨?
†KvbwU A¨v‡iv‡gwUK †hŠM bq? M 7×0L N 8×0L
K †gvjvwiwU L †gvjvwjwU
K + L 13. 0×15M NaOH `ªe‡Yi ppm NbgvÎv KZ?
M bigvwjwU N digvwjwU
K 4000 L 5000
M N M 7000 N 6000
22. Zwor we‡kølYKv‡j †KvbwU Av‡M PvR©gy³
14. n‡e?
6. B‡jK‡UªvdvBj n‡jv- 2FeCl3 + SnCl2 ¾® 2FeCl2 + SnCl4
+
i. SO3 wewµqvwU‡Z RvwiZ n‡q‡Q †KvbwU? KH L Pb2+
ii. RMgX M Cu2+ N Na+
K FeCl3 L FeCl2
iii. Br+ KCN H2 O
M SnCl4 23. N SnCl2 RCH2CH2X ¾¾® X ¾®Y
wb‡Pi †KvbwU mwVK? 15. K…wlKv‡R mvi‡dm IqvUv‡ii weï×Zvi H+
K i I ii L ii I iii Y n‡jv-
gvb`Ê †KvbwU?
M i I iii N i, ii I iii K wK‡Uvb L A¨vj‡Kvnj
K TDS L COD
7. †KvbwU RviK I weRviK Dfq wn‡m‡e M pH N BOD M A¨vjwWnvBW N K‡ev©vw·wjK GwmW
wµqv K‡i? wb‡Pi DÏxcKwU jÿ Ki Ges 16 I 17 24. CH3CH2Cl
Na
g B
K FeSO4 L K1 ï× B_vi
MH NH O
bs cÖ‡kœi DËi `vI :
2 2 2 KOH(aq)
A avZzi
†ÿ‡Î E°A/A2+ = 0×88 V C
g wb‡Pi DÏxcKwU jÿ Ki Ges 8 I 9 bs
cÖ‡kœi DËi `vI : B avZzi †ÿ‡Î E°B/B2+ = - 0×35 V B I C Drcv`Ø‡qi ms‡KZ n‡jv-
16. DÏxc‡Ki ZworØviØq Øviv MwVZ †Kv‡li K CH3(CH2)2CH3 I CH3CH2OH
L CH3CH2CH3 I CH2 = CH2
150 mL 200 mL Rb¨-
0×2M 0×25 M M CH3(CH2)2CH3 I CH2 = CH2
i. E°cell = E°A/A2+ + E°B/B2+
NaOH
N CH3CH2CH3 I CH3CH2OH
H2SO4 ii. E°cell = E°A/A2+ + E°B2+/B
iii. E°cell = E°B2+/B - E°A2+/A
25. †KvbwU AcÖwZmg A¨vjwKb?
A B K CH2 = CH2
wb‡Pi †KvbwU mwVK?
8. A `ªe‡Yi kZKiv NbgvÎv KZ? L CH3 - CH = CH - CH3
K i I ii L ii I iii
K 1% L 1×2% M CH2 = CH - CH3
M 1×5% N 1×96% M i I iii N i, ii I iii N ClCH = CHCl
23

ˆmU : K Kzwgjøv †evW© 2023 welq †KvW : 1 7 7

M †ebwRb g wb‡Pi DÏxcKwU jÿ Ki Ges 12 I 13 ®T ®T

bs cÖ‡kœi DËi `vI : 20. 50 g CaCO3Gi Zvcxq we‡qvR‡b Drcbœ

N mvB‡K¬vweDUvWvBb
CO2 Gi fi KZ MÖvg?
4. K4[Fe(CN)6] RwUj †hŠ‡M Fe Gi RviY H+
CH 3CH 2 CH 2 OH + A ¾® CH 3COOC 3 H 7 + H 2 O
K 11 L 22
gvb KZ? (Drcv`) M 44 N 88
K+2 L+3
12. 'A' †hŠMwU Kx? 21. wb‡Pi †KvbwU RviK I weRviK Dfqiƒ‡c
M+4 N+6
K HCOOH wµqv K‡i?
5. nvB‡Wªv‡Rb dz‡qj †m‡j A¨v‡bvW I
L CH3COOH K Fe3+ L Sn2+
K¨v‡_vW wnmv‡e †KvbwU e¨en„Z nq? M CH3CH2COOH M Hg 2+
N Cu2+
K wb‡Kj L wmjfvi N CH3CH2CH2COOH 22. Zwor ivmvqwbK †Kv‡l-
M cøvwUbvg N MÖvdvBU 13. Drcv`wUi IUPAC bvg Kx? i. ivmvqwbK kw³ Zwor kw³‡Z cwiYZ
6. evqygÊ‡j N2 Gi AvswkK Pvc KZ? K †cÖvcvBj B_v‡bv‡qU nq
K 1×00 atm L 0×78 atm L B_vBj B_v‡bv‡qU ii. A¨v‡bvW abvZ¥K nq
M 0×21 atm N 0×14 atm
M wg_vBj wg_v‡bv‡qU iii. A¨v‡bvW n‡Z gy³ B‡jKUªb eZ©bx‡Z
Cl
N wg_vBj B_v‡bv‡qU cÖevwnZ nq
7. CH3C = C O †hŠMwU †Kvb
14. 5% Na2CO3 `ªe‡Yi NbgvÎv KZ †gvjvi? wb‡Pi †KvbwU mwVK?
C
K 0×98 L 0×89 K i I ii L ii I iii
ai‡bi mgvYyZv cÖ`k©b K‡i? M 0×74 N 0×47 M i I iii N i, ii I iii
K MvVwbK L Av‡jvK mwµq 15. e„wói cvwbi pH KZ? 23. 10 †gvj A Ges 30 †gvj B M¨v‡mi
M R¨vwgwZK N Kvh©Kix g~jK K 8×50 L 7×50 wgkÖ‡Yi †gvU Pvc 12 atm n‡j, A M¨v‡mi
8. 2Na2S2O3(aq) + l2 ® Na2S4O6(aq) + M 7×00 N 6×50 AvswkK Pvc KZ?
2Nal(aq) wewµqvwU‡Z- 16. eªb‡÷W-jvDix gZev` Abymv‡i- K 3×0 atm L 9×0 atm
i. Na2S2O3 GKwU †m‡KÛvwi ÷¨vÛvW© i. PH4+ GKwU A¤ø M 16×0 atm N 48×0 atm
c`v_© 24. Pt, H2/H+ (aq) †Kvb ai‡bi Aa©‡Kvl?
ii. GwmW †cÖvUb `vZv
ii. I2 Gi weRvi‡Y N‡U‡Q K M¨vm
iii. GwmW B‡jKUªb MÖnxZv
iii. S Gi RviY gvb K‡g‡Q L RviY
wb‡Pi †KvbwU mwVK?
wb‡Pi †KvbwU mwVK? M avZz-avZeAvqb
K i I ii L ii I iii
K i I ii L ii I iii N RviY-weRviY
M i I iii N i, ii I iii
M i I iii N i, ii I iii 25. EZn/Zn2+ = + 0×76 V Ges EAg/Ag+ = - 0×799 V
17. 0×1M mgAvqZ‡bi NaOH Ges H2SO4
9. Zwor we‡kølYKv‡j †Kvb AvqbwU cÖ_‡g ZworØv‡ii mgš^‡q MwVZ †Kv‡li e.m.f
PvR©gy³ n‡e? `ªe‡Yi wgkÖ‡Yi cÖKw… Z Kx?
KZ †fvë?
K Br- L NO3- K Dfag©x L wbi‡cÿ
K 1×459 L 1×559
M OH -
N Cl -
M ÿvixq N A¤ø xq M 1×669 N 2×559
24

†mU : L PÆMÖvg †evW© 2023 welq †KvW : 1 7 7

(P + nVa) (V - nb) = nRT

2
Ki‡j A¨v‡bv‡W Drcbœ nq- iii. 18. `¯Ívi cv‡Î FeSO4 `ªeY ivL‡j m„ó
2
i. H2O
†Kv‡li †Kvl wefe n‡e-
ii. O2 wb‡Pi †KvbwU mwVK?
iii. NO2 [E°Zn2+ (aq)/Zn(s) = - 0.76 V;
Ki L i I ii
wb‡Pi †KvbwU mwVK? [E°Fe2+(aq)/Fe(s) = - 0.44 V]
M ii I iii N i, ii I iii
K i I ii L i I iii K - 0.32 V L - 1.20 V
10. SATP †Z mgcwigvY (gm) M¨v‡mi M + 0.32 V N + 1.20 V
M ii I iii N i, ii I iii
AvqZb me‡P‡q Kg †Kvb M¨v‡mi? 19. †Kvb M¨vmwU e‡q‡ji m~Î n‡Z me‡P‡q
3. †Kvb Z_¨ mwVK bq? K CO2 L O2
K bgybv cvwbi COD Gi gvb BOD
Kg wePy¨Z n‡e?
M NH3 N N2
K H2 L CO2
A‡cÿv †ewk nq| 11. †Kvb mg‡MvÎxq †kÖwYi mvaviY ms‡K‡Z n
M N 2 N O2
L Li cvwb‡Z Ca2+ I Mg2+ Gi jeY Gi me©wb¤œ gvb 1 (GK) cÖ‡hvR¨? 20. †nUv‡iv A¨v‡iv‡gwUK †hŠM †KvbwU?
`ªexf‚Z _v‡K| K A¨vj‡Kvnj L A¨vjwWnvBW
K Bw_wjb A·vBW L †ebwRb
M WHO g‡Z cvbxq R‡ji pH mxgv M d¨vwU GwmW N A¨vgvBW
M wcwiwWb N †UUªvnvB‡WªvwdDivb
6.5 - 8.5| 12. [Fe(H2O)6]3+ Gwm‡Wi AbyeÜx ÿviK n‡jv- 21. †Kvb †hŠ‡M 'C' Gi RviY gvb k~b¨?
N f‚-c„‡ôi cvwb‡Z HNO3 `ªexf‚Z K [Fe(H2O)4(OH)2]+
K CH4 L CO
_v‡K| L [Fe(H2O)5(OH)]2+
M CH 2 Cl 2 N C2H2
4. A‡_©v-c¨viv wb‡`©kK MÖæc †KvbwU? M [Fe(H2O)5(OH)]3+
N [Fe(H2O)6(OH)] 2+ 22. GKB gvÎvi we`y
¨ r GKB mgq Pvjbv
K - NHCH3 L - NO2
M - CHO N - COOH 13. Zwor ivmvqwbK †Kv‡li emf = ? Ki‡j †Kvb AvqbwU K¨v‡_v‡W †ewk Rgv
70°C i. E°Anode (ox) + E°Cathode (Red) n‡e?
5. NaOH + Cl2 ¾¾® NaCl + A + H2O
ii. E°Cathode (Red) - E°Anode (Red) K Cu2+ L Fe3+
D³ wewµqvq Cl Gi cwiewZ©Z RviY
iii. E°Anode (ox) - E°Cathode (ox) M Ag+ N Na+
Ae¯’v- wb‡Pi †KvbwU mwVK? 23. SATP †Z bvBUªvm A·vBW M¨v‡mi NbZ¡
i. - 1 K i I ii L i I iii gL-1 GK‡K KZ?
ii. + 1
M ii I iii N i, ii I iii K 1.77 L 1.96
iii. + 5
wb‡Pi †KvbwU mwVK? 14. 27°C ZvcgvÎvq 8 g CH4 M¨v‡mi M 1.85 N 1.21

Ki L i I ii MwZkw³ KZ Ryj? g DÏxcKwU jÿ Ki Ges 24 I 25bs

M ii I iii N i I iii
K 935.32 L 1870.65 cÖ‡kœi DËi `vI :
M 3741.30 N 4870.30 H2 O2
6. CuSO4 `ªe‡Y 4 A¨vw¤úqvi we`y¨r 45 R - CH = CH2 + HBr ¾¾® 'A' (cÖavb
g DÏxcKwU jÿ Ki Ges 15 I 16 bs
wgwbU hver Pvjbv Ki‡j K¨v‡_v‡W Kx Drcv`) + B
cÖ‡kœi DËi `vI :
cwigvY (g) Kcvi Rgv n‡e? 24. A †hŠMwU n‡jv-
K 7.11 L 3.55
K R - CH(OH) - CH3
M 0.118 N 0.059 †mwg‡gvjvi wØÿvixq GwmW
Na2CO3 50 mL, 0.2 M L R - CH2 - CH2 - OH
7. †Kvb †hŠMwU †m‡KÛvwi ÷¨vÛvW© c`v_©?
`ªeY `ªeY M R - CH2 - CH2Br
K Na2CO3 L K2Cr2O7
N R - CH(Br) - CH3
M Na2C2O4 N KMnO4
cvÎ-A cvÎ-B
25. D³ wewµqvq-
8. C3 H 6 Oms‡KZ Øviv MwVZ m¤¢ve¨ Kvh©Kix
[cvÎ B Gi `ªeY Øviv A cv‡Îi `ªeY i. gviKwbKf bxwZ cÖ‡hvR¨ bq
g~jK mgvYy n‡jv-
m¤ú~Yi© ƒ‡c cÖkwgZ nq] ii. Drcv` A Av‡jvK mwµq
i. A¨vjwWnvBW
15. A cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K KZ? iii. gy³ g~jK m„wói gva¨‡g wewµqv
ii. wK‡Uvb
K 5.3 ´ 104 L 1.06 ´ 103
iii. Am¤ú„³ A¨vj‡Kvnj msNwUZ nq
M 9.8 ´ 103 N 1.96 ´ 104
wb‡Pi †KvbwU mwVK? 16. A cv‡Îi `ªe‡Yi AvqZb KZ? wb‡Pi †KvbwU mwVK?
Ki L i I ii K 20 mL L 40 mL K i I ii L i I iii
M ii I iii N i, ii I iii M 1000 mL N 2000 mL M ii I iii N i, ii I iii
25

†mU : K wm‡jU †evW© 2023 welq †KvW : 1 7 7

6. †Kvb †gŠjwU GwmW †_‡K nvB‡Wªv‡Rb M4 N5

K ˆRe `~lK
g wb‡Pi DÏxc‡Ki Av‡jv‡K 23 I 24 bs
cÖwZ¯’vcb Ki‡Z cvi‡e? L A‰Re `~lK
K Ni L Bi
cÖ‡kœi DËi `vI :
M TDS
M Hg N Pt Pt, H2(g)(1atm, 25°C)/H2SO4(aq) || (CuSO 4) (aq)/Cu(s)
N pH
7. DBwjqvgmb wewµqvq †KvbwU Drcbœ nq? E°Cu/Cu2+ = - 0×34 V
15. †Kvb weKviKwU Kve©wbj MÖæc kbv³Ki‡Y 23. †KvlwUi cÖgvY emf KZ?
K A¨vj‡Kvnj L A¨vjwWnvBW
e¨en„Z nq? K - 0×34 V L + 0×34 V
M B_vi N wK‡Uvb
K jyKvm weKviK M - 1×10 V N + 1×10 V
8. K¨v‡jv‡gj ZworØv‡i †KvbwU e¨en„Z nq?
L U‡jb weKviK 24. DÏxc‡Ki †KvlwU‡Z-
K Hg2Cl2 L HgCl2
i. A¨v‡bvW FYvZ¥K
M AgCl N NH4Cl M ÿvixq KMnO4
ii. K¨v‡_v‡W weRviY N‡U
g wb‡Pi DÏxc‡Ki Av‡jv‡K 9 I 10 bs N 2,4×DNPH
iii. ivmvqwbK kw³ Zwor kw³‡Z iƒcvšÍwiZ
cÖ‡kœi DËi `vI : 16. 1×80 × 10-3g Møy‡KvR AYy‡Z KZwU
D
nq
R - NH2 + CHCl3 + KOH(alc) ¾® X + Aw·‡Rb cigvYy Av‡Q?
wb‡Pi †KvbwU mwVK?
KCl + H2O K 6×02 × 1018 L 3×61 × 1018
Ki L i I ii
9. X †hŠMwU n‡jv- M 3×61 × 1019 N 6×02 × 1019
M ii I iii N i, ii I iii
K bvBUªvBj 17. †KvbwU †ebwRb ej‡qi mwµqZv n«vm
25. 0×025 M Na2CO3 `ªe‡Yi ppm NbgvÎv
L AvB‡mvbvBUªvBj K‡i? KZ?
M A¨vjKvBj n¨vjvBW K - CHO L - CHR2 K 2×50 × 10-2 L 2×65 × 102
N A¨vj‡Kvnj M - NHR2 N - OCH3 M 2×50 × 10 3
N 2×65 × 103
26

†mU : K ewikvj †evW© 2023 welq †KvW : 1 7 7

mgq-25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-25
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. †Kvb M¨vmØ‡qi e¨vcb nvi mgvb? 11. C3H7MgX I CO2 Gi wewµqvq Drcbœ 18. Av‡cwÿK cwievwnZvi GKK †KvbwU?
K N2, C2H4 L Cl2, O2 †hŠ‡Mi Av`ª© we‡køl‡Y Kx Drcbœ nq? K wK‡jvRyj L Ing-1
M CO, O2 N H2 , O2 K weD‡Ub L weDUvbwqK GwmW M †mwg-1 N Ing-1 †mwg-1
2. wb‡Pi †Kvb †hŠMwUi mv‡_ Br2 mn‡R M weDUvbj N weDUvb¨vj 19. FeSO4 Gi `ªe‡Y 2.0 F we`y¨r PvR© cÖevwnZ
ms‡hvRb wewµqv †`q? g wb‡Pi DÏxcK e¨envi K‡i 12 I 13 bs Ki‡j KZ †gvj Avqib Rgv n‡e?
K C6H5NO2 L C5H10
cÖ‡kœi DËi `vI : K 1.04 ´ 10-5 mole
M C4H10 N C5H12
H+/HgSO4 L 5.8 ´ 10-4 mole
3. A¨vjKvBj n¨vjvBW †Kvb ai‡bi wewµqv A + H2O ¾¾¾®
60°C M 0.5 mole
cÖ`k©b K‡i? cybwe©b¨vm N 1 mole
CH3 - CH2 - C = CH2 ¾¾¾¾® B
K B‡jK‡UªvwdwjK ms‡hvRb | 20. wb‡Pi †Kvb M¨vmwU Av`k© AvPiY †_‡K
OH
L wbDwK¬IwdwjK cÖwZ¯’vcb Kg wePz¨wZ †`Lvq?
12. B†hŠMwU †Kvb wewµqv cÖ`k©b K‡i?
M wW Kv‡e©vw·‡jkb K He L H2
K ndg¨vb wW‡MÖ‡Wkb wewµqv
M CO2 N N2
N A¨vjWj Nbxfeb
L wK¬‡gbkb weRviY wewµqv 21. jyBm GwmW †KvbwU?
4. 100 mL 0.01 M K2Cr2O7 `ªe‡Yi ppm
M DU©R wewµqv K AlCl3 L H2 O
NbgvÎv KZ?
N wd«‡Wj-µvdU wewµqv M R-NH2 N PH3
K 2.94 L 29.4
13. A †hŠMwU- 22. 10% (w/w) Na2CO3 Gi Rjxq `ªe‡Y
M 294 N 2940
i. A¤øag©x cvwbi †gvj fMœvsk KZ?
5. STP †Z †Kvb M¨v‡mi 2.0 MÖvg me‡P‡q
ii. weDwUb-1 A‡cÿv AwaK mwµq K 0.0185 L 0.98
†ewk AvqZb `Lj K‡i? M 0.9815 N 0.9833
K O2 L Cl2 iii. B‡jK‡UªvwdwjK ms‡hvRb wewµqv †`q
23. wb‡Pi †KvbwU M¨vjfvwbK †mj-
M He N N2 wb‡Pi †KvbwU mwVK?
Zn(s)/Zn2+(aq) || Ag+(aq)/Ag(s) Gi wefe
6. ÿvixq `ªe‡Y KMnO4 KqwU B‡jKUªb Ki L i I ii
evovq?
MÖnY K‡i? M i I iii N i, ii I iii
K1 L3 14. †M-jymv‡Ki Pv‡ci m~Î wb‡Pi †KvbwU? K [Zn2+] e„w× I [Ag+] n«vm
M5 N7 K P µ T (V, n w¯’i)
L [Zn2+] e„w×
7. wb‡Pi †Kvb c×wZ mn‡R cvwbi ¯’vqx L V µ n (P, T w¯’i) M [Zn ] 2+
e„w× I [Ag+] e„w×
LiZv `~i Kivi Rb¨ e¨envi Kiv hvq bv? M V µ T (n, P w¯’i) N [Ag+] e„w×
K ùzUb 1 24. K2Cr2O7 + FeSO4 + H2SO4 ¾® K2SO4
NVµ
P
(n, T w¯’i) + Cr2(SO4)3 + Fe2(SO4)3 + H2O
L Kw÷K †mvWv ms‡hvRb
15. wb‡¤œi †Kvb wewµqvq Kve©b msL¨v e„w× cvq? wewµqvwU‡Z RviK I weRvi‡Ki †gvj
M †mvwWqvg Kve©‡bU ms‡hvRb
K ndg¨vb wW‡MÖ‡Wkb wewµqv msL¨vi AbycvZ †KvbwU?
N cvZb
L DU©R wewµqv K1:1 L6 :1
8. †KvbwU cÖvBgvwi ÷¨vÛvW© c`v_©?
M wW-Kve©w·‡jkb wewµqv M1 :6 N 1 : 12
K KMnO4 L NaOH
N mgvYyKiY wewµqv
25. †h †hŠMmg~n n¨v‡jvdig wewµqv cÖ`k©b
M K2Cr2O7 N HCl
9. wb‡Pi †Kvb AvqbwU RviK I weRviK 16. GKwU ˆRe †hŠ‡M `ywU Am`„k AcÖwZmg K‡i-
Kve©b Av‡Q| †hŠMwU KqwU mgvYy MVb OH
Dfq wnmv‡e KvR Ki‡e? |
K Pb4+ L Sn4+ K‡i? i. CH3 - CH = CH3
M Mn7+ N Fe2+ K4 L3 ii. CH3 - CO - CH3
10. 2+ -
Fe + 2e ¾® Fe wewµqvq 28 g Fe avZz M2 N1 iii. CH3CONH2

Drcv`‡b KZ Zwor PvR© cÖ‡qvRb n‡e? 17. B‡jKUªbxq Zwor cwievnx †KvbwU? wb‡Pi †KvbwU mwVK?
K 4F L 3F K CuSO4 `ªeY L FeSO4 `ªeY Ki L i I ii

M 2F N 1F M Fe N Fe2(SO4)3 `ªeY M ii I iii N i, ii I iii

†mU : M w`bvRcyi †evW© 2023 welq †KvW : 1 7 7

mgq-25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-25
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. †Kvb `ªeYwU `xN©w`b mwVKfv‡e msiÿY g wb‡Pi DÏxcKwU jÿ Ki Ges 11 I 12 19. 2 F Zwor cÖev‡n KZ MÖvg †divm Avqb
Kiv hvq? bs cÖ‡kœi DËi `vI : PvR© gy³ nq?
K KMnO4 L NaOH A(s) + BSO4(aq) ¾® ASO4(aq) + B(s) K 28 L 56
M K2Cr2O7 N H2SO4 GLv‡b, E°A2+(aq)/A(s) = - 0.76 V M 81 N 112
2. †ebRvjwWnvBW †hŠ‡M KqwU wmMgv eÜb 20. w¯’i ZvcgvÎvq wbw`©ó f‡ii †Kv‡bv M¨v‡mi
E°B2+(aq)/B(s) = + 0.44 V
Av‡Q? AvqZb I Pv‡ci m¤úK©h³ y †iLv †Kvb
K4 L9
11. DÏxc‡Ki †KvlwUi †Kvl wefe n‡jv-
cÖKw… Zi?
M 14 N 15 K - 0.32 V L + 0.42 V
K cive„Ë
3. cÖgvY nvB‡Wªv‡Rb M¨vm ZworØv‡i `ªe‡Y H + M + 1.10 V N + 1.20 V
L gyjwe›`yMvgx mij‡iLv
Avq‡bi NbgvÎv I M¨v‡mi Pvc h_vµ‡g- 12. DÏxc‡Ki wewµqvq Z_¨vbyhvqx-
M Awae„Ë
K 0.1M, 1 atm L 0.2M, 100 kPa i. 'B'-cv‡Î ASO4 ivLv hv‡e
N Y-Aÿ †Q`Kvix mij‡iLv
M 1M, 100 kPa N 1M, 760 mm(Hg) ii. 'A'-cv‡Î BSO4 ivLv hv‡e
4. 50 mL `ªe‡Y 4.9 g H2SO4 `ªexf‚Z Av‡Q| 21. Av`k© M¨v‡mi †ÿ‡Î-
iii. K¨v‡_v‡W B2+ Avqb A2+ Avq‡bi
i. PV = nRT
`ªeYwUi NbgvÎv- Av‡M PvR©gy³ n‡e
i. 1M
ii. 98000 ppm
wb‡Pi †KvbwU mwVK? ii.
dU
dV T
=0 ( )
iii. 9.8 ´ 104 mg/mL K i I ii L i I iii iii. STP †Z †gvjvi AvqZb 22.414 L
wb‡Pi †KvbwU mwVK? M ii I iii N i, ii I iii wb‡Pi †KvbwU mwVK?
K i I ii L i I iii 13. STP †Z 2 mol CaCO3 I HCl Gi K i I ii L i I iii
M ii I iii N i, ii I iii wewµqvq Drcbœ CO2 M¨v‡mi AvqZb KZ M ii I iii N i, ii I iii
5. Zwor we‡kølYKv‡j †Kvb AvqbwU Av‡M wjUvi? 22. 27 °C ZvcgvÎvq 8 gm CH4 M¨v‡mi
PvR©gy³ n‡e? K 11.2 L 22.4 MwZkw³ KZ Ryj?
K Al3+ L Ag+ M 34.8 N 44.8 K 935.32 L 1870.65
M Zn2+ N Cu2+ 14. †KvbwU A‡_©v-c¨viv wb‡`©kK g~jK? M 3741.30 N 4870.30
6. UvB‡Uªk‡b e¨en„Z ARvbv `ªeY‡K ejv nq- K - CN L - CHO g DÏxcK Abymv‡i 23 I 24 bs cÖ‡kœi DËi
K UvBU¨v›U L UvB‡UªU M - OCH3 N - NO2 `vI :
M UvBUvi N UªvBgvi 15. †M-jym¨v‡Ki Pvcxq m~‡Îi mgxKiY n‡jv- 0 - 5°C
A + HNO2 + HCl ¾¾¾® B + 2H2O
7. cvwb‡Z †Kvb jeYwU _vK‡j A¯’vqx KVµP LPµT
LiZvi m„wó nq? GLv‡b 'A' Qq Kve©bwewkó cÖvBgvwi
1 1
MVµ NPµ A¨v‡iv‡gwUK A¨vwgb|
K CaSO4 L MgCl2 P T
M FeCl3 N Ca(HCO3)2 16. †KvbwU me‡P‡q Zxeª GwmW? 23. DÏxc‡Ki wewµqvwUi bvg-
8. e„wói cvwb‡Z †Kvb c`v‡_©i Dcw¯’wZ K CF3COOH L CCl3COOH K Kvwe©j A¨vwgb wewµqv
GwmW e„wói g~j KviY? M CBr3COOH N Cl3COOH L ndg¨vb ÿz`ªvskKiY wewµqv
K HNO3 L HCl 17. 100 mL †Wwm‡gvjvi HCl I 100 mL M Wvqv‡RvKiY wewµqv
M CH3COOH N H2CO3 †Wwm‡gvjvi Na2CO3 `ªe‡Yi wgkÖ‡Yi N DU©R wewµqv
9. Av‡jvK mgvYyZv cÖ`k©b K‡i- cÖK…wZ Kxiƒc n‡e? 24. DÏxc‡Ki-
K weDU-2-Aj K ÿvixq L A¤ø xq i. wewµqvwU cÖvBgvwi A¨vwg‡bi
L 2-A¨vwg‡bv †cÖv‡cb
M Dfag©x N wbi‡cÿ kbv³Kvix wewµqv
M 2-†K¬v‡iv †cÖvcvb-2-Aj
18. ii. 'A'-Gi bvB‡Uªk‡b †gUv Drcv`
N 3-nvBWªw· †cÖvcvb¨vj
KMnO4 cvIqv hvq
CCl 4 H 2O, Zn + FeSO4
10. C(CH3)2 = C(CH3)2 + O3 ¾¾® A ¾¾¾® iii. 'B'-n‡Z †K¬v‡iv‡ebwRb ˆZwi Kiv hvq
2B + ZnO H2SO4
wb‡Pi †KvbwU mwVK?
Dc‡ii wewµqvq Drcbœ 'B'- K i I ii L i I iii
A-`ªeY B-`ªeY
i. 2, 4-DNPH Gi mv‡_ njy`-Kgjv
'A' I 'B' `ªeY wgwkÖZ Ki‡j- M ii I iii N i, ii I iii
Aat‡ÿc m„wó K‡i
i. FeSO4 RvwiZ nq 25. Abv`ª© AlCl3
ii. U‡jb weKvi‡Ki mv‡_ wmjfvi `c©Y + CH3COCl ¾¾¾¾® A + B;
ii. wZbwU jeY ˆZwi nq
m„wó K‡i
iii. cÖwZ Mn Gi RviY gvb wZb GKK wewµqvwU-
iii. 'B' Gi wK¬‡gbmb weRvi‡Y m¤ú„³
nvB‡WªvKve©b ˆZwi K‡i cwiewZ© Z nq K B‡jK‡UªvwdwjK cÖwZ¯’vcb wewµqv
wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK? L wbDwK¬IwdwjK cÖwZ¯’vcb wewµqv
K i I ii L i I iii K i I ii L i I iii M GK AvYweK AcmviY wewµqv
M ii I iii N i, ii I iii M ii I iii N i, ii I iii N B‡jK‡UªvwdwjK ms‡hvRb wewµqv
28

†mU : M gqgbwmsn †evW© 2023 welq †KvW : 1 7 7

mgq-25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-25
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. †KvbwU †m‡KÛvwi ÷vÛvW© c`v_©- 8. 1†gvj Fe2O3 n‡Z 1 †gvj †jvnv †c‡Z 17. e‡q‡ji m~‡Îi mgxKi‡Yi †jLwPÎ †Kvb
K †mvwWqvg A·v‡jU KZ cwigvY Zwor cÖ‡qvRb? ai‡bi?
L cUvwkqvg WvB‡µv‡gU K1F L2 F K AvB‡mv_vg© L AvB‡mvevi
M3 F N6 F M AvB‡mv‡Kvi N AvB‡mv‡gvj
M Kw÷K †mvWv
9. B_vb‡ji mv‡_ †Kvb †hŠMwU wgwk‡q 18. 100 °C ZvcgvÎvq 2.05 atm Pv‡c CO2
N A·vwjK GwmW cvIqvi A¨vj‡Kvnj Drcbœ Kiv nq?
M¨v‡mi NbZ¡ KZ?
2. AwZwi³ B_vBj A¨vj‡Kvnj‡K 140 °C K wg_vbj L †ebwRb
K 1.50 gL-1 L 1.76 gL-1
ZvcgvÎvq mvjwdDwiK Gwm‡Wi mv‡_ M †dbj N weD‡Ub M 2.34 gL -1
N 2.95 gL-1
wewµqvq Drcbœ nq- 10. 0.001M HCl GwmW `ªe‡Yi pH Gi gvb 19. WHO Aby‡gvw`Z TDS Gi m‡e©v”P gvÎv
K CH2 = CH2 KZ? n‡jv-
L CH º CH K1 L2 K 6 ppm L 10 ppm
M CH3CH2 - O - CH2CH3 M3 N4 M 100 ppm N 500 ppm
N CH3 - O - CH3 11. †KvbwU RviK I weRviK Dfq wn‡m‡e 20. w¯’i ZvcgvÎvq R.M.S. †e‡Mi mwVK µg
3. †KvbwU n¨v‡jvdig wewµqvq AskMÖnY wµqv K‡i? †KvbwU?
K‡i? K SO 2 L H 2 S K O2 > CO2 > SO2
M Cl2 N O3 L CO2 > O2 > SO2
K †ebwRb L †dbj 0
12. ClO3- + 5Cl + 6H ¾® 3Cl2 + 3H2O|
- - M SO2 > CO2 > O2
M B_vb¨vj N wg_vb¨vj
N O2 > SO2 > CO2
GLv‡b RviY N‡U‡Q-
g wb‡Pi DÏxc‡Ki Av‡jv‡K 4 I 5bs cÖ‡kœi 21. cvwbi A¯’vqx LiZvi Rb¨ `vqx †KvbwU?
K ClO3- L Cl-
DËi `vI : K SO42- L CO32-
M H+ N ClO3- I Cl-
150 mL NHO3 Gi `ªe‡Y 1.5 g `ªe Av‡Q| M Cl- N HCO3-
13. CH3 - CH3 †hŠ‡M msKixKiY †KvbwU?
`ªeYwU 2% Na2CO3 `ªeY‡K cÖkwgZ 22. cÖvK…wZK M¨vm + O2 ¾® A + H2O; A †hŠMwU-
K sp L sp2
Kij| M sp3 N sp3d
i. wMÖb nvDm cÖfv‡ei KviY
4. GwmW `ªe‡Yi NbgvÎv ppm GK‡K KZ? 14. wRsK I wmjfvi ZworØv‡ii weRviY ii. BDwiqv Drcv`‡b eën„Z nq
K 105 ppm L 104 ppm wef‡ei gvb h_vµ‡g I + 0.80
- 0.76 V iii. wbi‡cÿ A·vBW
M 10 ppm3 2
N 10 ppm V| GB ZworØvi `ywU Øviv ˆZwi †Kv‡li †gvU wb‡Pi †KvbwU mwVK?
wefe KZ? K i I iii L i I ii
5. ÿvixq `ªeYwUi †ÿ‡Î cÖ‡hvR¨-
K - 0.04 V L + 0.04 V M ii I iii N i, ii I iii
i. NbgvÎv 0.189 M
M + 1.56 V N - 1.56 V 23. C4 H 8 O †hŠ‡Mi m¤¢ve¨ mgvYy KqwU?
ii. AvqZb 37.3 mL
15. †K¬v‡ivd‡g©i †ÿ‡Î- K2 L3
iii. AvqZb 57.6 mL M4 N5
i. kbv³Ki‡Y AgNO3 `ªeY eënvi nq
wb‡Pi †KvbwU mwVK? [we. `ª. : mwVK DËi 10]
ii. msiÿ‡Y 1% B_vbj †hvM Kiv nq
K i I ii L ii I iii 24. SN1 wewµqvi †ÿ‡Î cÖ‡hvR¨-
iii. Ny‡gi Jla ˆZwi‡Z eënvi nq
M i I iii N i, ii I iii i. mwµqZv µg 3° > 2° > 1° > CH3X
wb‡Pi †KvbwU mwVK?
[we. `ª. : mwVK DËi ïay (i)] K i I ii L ii I iii
ii. †cvjvi `ªve‡K N‡U
6. wb‡Pi †KvbwU jNy H2SO4 †_‡K M i I iii N i, ii I iii
iii.Ae¯’všÍi Ae¯’v m„wó nq
nvB‡Wªv‡Rb wegy³ Ki‡Z cv‡i? 16. 10 g NiCl2 `ªe‡Y 10A we`y¨r cÖevwnZ Ki‡j
wb‡Pi †KvbwU mwVK?
K Pb L Hg K i I ii L ii I iii
meUzKz avZz K¨v‡_v‡W mwÂZ nq| G‡ÿ‡Î
M Cu N Ca M i I iii N i, ii I iii
KZ mg‡qi cÖ‡qvRb n‡e? [Ni = 58.69]
7. †KvbwU RviY-weRviY Aa©‡Kvl? K 1496 sec L 3680 sec 25. STP I SATP †Z ZvcgvÎvi cv_©K¨ KZ?
- -
K Pt, Cl2/Cl L Ag, AgCl/Cl M 5700 sec N 6200 sec K 0°C L 25°C
M Na-Hg/Na+ N Pt, Fe2+/Fe3+ [we.`ª. : mwVK DËi 1489.7 sec] M 30°C N 273°C
29

†mU : L XvKv †evW© 2022 welq †KvW : 1 7 7

K i I ii L i I iii 9. †Kvb M¨v‡mi ZvcgvÎv I Pvc wØ¸Y Kiv 19. †Kvb †hŠMwU U‡UvgvwiZv cÖ`k©b K‡i?
M ii I iii N i, ii I iii n‡j AvqZ‡bi Kx cwieZ©b n‡e? K weDU-2 Bb

2. †KvbwU mwVK? K wØ¸Y n‡e L WvB B_vBj B_vi

K E°†Kvl = E° A¨v‡bvW (RviY) + E°K¨v‡_vW (RviY) L †Kvb cwieZ©b n‡e bv M †cÖvcv‡bvb

L E°†Kvl = E°A¨v‡bvW (weRviY) - E°K¨v‡_vW (weRviY) M Pvi¸Y n‡e N B_vb¨vj
M E°†Kvl = E°A¨v‡bvW (RviY) + E°K¨v‡_vW (weRviY) N A‡a©K n‡e 20. †KvbwU nv‡Kj msL¨v bq?
N E°†Kvl = E°A¨v‡bvW (RviY) - E°A¨v‡bvW (weRviY) Pd - BaSO 4 K2 L4
g DÏxcKwU jÿ Ki Ges 3 I 4 bs cÖ‡kœi 10. CH3 - C º C - H + H 2 ¾¾¾¾® A, A M6 N 10
DËi `vI : †hŠMwUi ms‡KZ- 21. Av`k© M¨v‡mi ˆewkó¨m~PK gvb`ø n‡jv-
D M¨vm K CH3 - CH2 - CH3 i. PV = nRT
A M¨vm L CH3 - CH = CH2
B M¨vm
M CH3 - CH2 - COOH
ii. ( )
dU
dV T
=0
PV

C M¨vm
N CH3 - CH(OH) - CH3 iii. STP †Z†gvjvi AvqZb 22.414 L
11. 0.5 M HNO 3 Gi NbgvÎv ppm GK‡K KZ? wb‡Pi †KvbwU mwVK?
P
K 31500 L 41500 K i I ii L i I iii
3. †Kvb M¨vmwU mevi Av‡M ZijxK…Z n‡e? M 53500 N 63500
M ii I iii N i, ii I iii
KA LB 12.
Drcv`; GB wewµqvq-
Na2S2O 3 + I 2 ®
MC ND
22. Bw_b I B_vB‡bi cv_©K¨Ki‡Y e¨en„Z
K Na2S2O3 RviK
4. DÏxc‡Ki- `ªeY-
L I2 Gi weRviY N‡U‡Q
i. A M¨vmwU C M¨vm A‡cÿv Kg i. [Ag(NH3)2]NO3
M Av‡qvwW‡bi RviY gv‡bi e„w× †c‡q‡Q ii. [Cu(NH3)2]Cl
†clY‡hvM¨
N S Gi RviY gvb n«vm †c‡q‡Q iii. Br2 + CCl4
ii. B M¨v‡mi e¨vc‡bi nvi me‡P‡q †ewk
13. 12% (w/v) Na2CO3 `ªe‡Yi NbgvÎv wb‡Pi †KvbwU mwVK?
iii. D M¨vm cvwb‡Z AwaK `ªeYxq
†gvjvwiwU‡Z KZ? K i I ii L i I iii
wb‡Pi †KvbwU mwVK?
K 1.13 L 1.31 M ii I iii N i, ii I iii
K i I ii L i I iii
M 0.11 N 1.20 23. †Kvb AvqbwU K¨v‡_v‡W mevi Av‡M
M ii I iii N i, ii I iii
14. cvi †K¬vwiK Gwm‡Wi †K›`ªxq cigvYyi PvR©gy³ n‡e?
5. AÅvjwWnvBW + ˆdnwjs `ËeY ® jvj
RviY msL¨v KZ? K Ni2+ L Cu2+
AatGÞc wewKÌqvwU- M Zn 2+
N Na+
K+1 L+3
K cÖwZ¯’vcb wewµqv M+5 N+7 24. AgNO3 `ªe‡Yi g‡a¨ 3000 C we`y¨r Pvjbv
L ms‡hvRb wewµqv
15. cÖvBgvwi Avwgb kbv³Ki‡Y e¨en„Z nq- Ki‡j K¨v‡_v‡W KZ MÖvg Ag mwÂZ n‡e?
M RviY-weRviY wewµqv [Ag = 108]
K CHCl3 + KOH
N AcmviY wewµqv L Br2 + KOH K 3.3575 L 2.3575
6. †KvbwU RviK c`v_©? M Cu(OH)2 + NaOH M 0.3357 N 0.2357
K FeSO4 L H2C2O4 N KMnO4 + KOH 25. ˆRe †hŠ‡Mi Kve©
b wkK‡j Kve©b msL¨v
M Na2S2O3 N KMnO4
16. my‡µv‡Ri `ªeYwU- n«vm Kivi c×wZ n‡jv-
7. MwjZ AlCl3 Gi g‡a¨ KZ d¨vivW Zwor
K Zwor we‡køl¨ K DU©R wewµqv
cÖevwnZ Ki‡j K¨v‡_v‡W 54 MÖvg Al mwÂZ
L Zwor Awe‡køl¨ L Kvwe©j A¨vwgb wewµqv
n‡e?
M B‡jKUªbxq cwievnx M wWKve©w·‡jkb wewµqv
K1 L3
M6 N9 N AavZe cwievnx N DBwjqvgmb wewµqv
30

†mU : M ivRkvnx †evW© 2022 welq †KvW : 1 7 7

2. 2.5 A we`y¨r 1 wgwbU a‡i †Kvb B‡jK‡UªvW iii. bvB‡Uªv gyjK

M 60% wg_vb¨vj I 40% cvwbi wgkÖY
cÖevwnZ Ki‡j cÖevwnZ we`y¨‡Zi PvR© KZ wb‡Pi †KvbwU mwVK?
N 40% wg_vbj I 60% cvwbi wgkÖY
K i I ii L ii I iii
Kzj¤^? 10. RviY-weRviY wewµqvq, weRviK c`_©- M i I iii N i, ii I iii
K 0.15 L 1.5
i. B‡jKUªb eR©b K‡i 18. jeY †mZz‡ Z wb‡Pi †KvbwU `ªeY e¨envi
M 15 N 150
ii. RvwiZ nq Kiv hvq?
3. RCONH2 †hŠMwUi C - N, G s-eÜb
iii. B‡jKUªb MÖnY K‡i K NaCl L KNO3
†Kvb †KvY AiweUv‡ji Awaµg‡Yi d‡j M KMnO4 N K2CO3
m„wó? wb‡Pi †KvbwU mwVK?
19. cÖgvY Ae¯’vq 10 cm3 NH3 M¨v‡mi fi
3 3 2 3 K i I ii L i I iii
K sp - sp L sp - sp KZ?
M sp - sp3 N sp2 - sp M ii I iii N i, ii I iii K 5.583 ´ 10-3 g
L 6.589 ´ 10-3 g
w¯’i ZvcgvÎvq P ebvg V †jLwPÎwU 11. NH3 + HCl HoI NH4 + Cl ; G wewµqvq
+ -
1
4.
AbyeÜx A¤ø †KvbwU? M 7.589 ´ 10-2 g
n‡jv- N 7.589 ´ 10-3 g
K HCl L NH4+
-
20. A¨vjvBj A¨vj‡Kvnj †KvbwU?
M NH3 N Cl
K CH2 = CHOH
K L
12. [Co(NH3)6]3+AvqbwU‡Z †K›`ªxq cigvYyi L CH2CH = CHOH
RviY gvb KZ? M CH2 = CHCH2OH
K+1 L+2 N CH2 = C - CH2OH
|
M+3 N+6 Cl
M N 13. 0.01 M Na2CO3 `ªeY- 21. 0.05 M H2SO4 `ªe‡Yi NbgvÎv ppm

cÖvBgvwi ÷¨vÛvW© c`v‡_©i cÖgvY `ªeY

i. GK‡K KZ?
K 4500 L 4900
5. Zwor we‡køl‡Yi gva¨‡g Drcv`b Kiv hvq- ii. `ªeYwU GKwU †Wwm‡gvjvi `ªeY
M 14500 N 14900
i. Al iii. 500 ml `ªeY 5.3 g Na2CO3 `ªexf‚Z
22. Zn Gi Zwor ivmvqwbK Zzjv¼ n‡”Q-
ii. Na _v‡K K 7.5 g/C
iii. Zn
wb‡Pi †KvbwU mwVK? L 5.6994 ´ 10-4 g/C
wb‡Pi †KvbwU mwVK? M 5.6994 ´ 10-3 g/C
K i I ii L ii I iii
K i I ii L ii I iii N 3.388 ´ 10-4 gC-1
M i I iii N i, ii I iii
M i I iii N i, ii I iii 23. wb‡Pi †KvbwU B‡jK‡UªvdvBj?
we. `ª. mwVK DËi ïay (i)| K NH3 L R - OH
6. ˆRe †hŠ‡M - COOH g~jK kbv³Ki‡Y
14. SI GK‡K R Gi gvb †KvbwU? M AlCl3 N H2 O
wb‡Pi †KvbwU e¨en„Z nq?
K 8.314 ´ 107 erg mol-1 K-1 24. Kvwe©j A¨vwgb cixÿv Øviv wb‡Pi †KvbwU
K FeCl3 L AgNO3
L 0.0821 L atm mol K -1 -1 kbv³ Kiv hvq?
M NaHCO3 N NaNO3
M 8.314 J mol-1 K-1 K †m‡KÛvwi A¨vwgb
7. 20% NaOH `ªe‡Yi †gvjvwiwU KZ?
N 1.987 cal mol K -1 -1 L cÖvBgvwi A¨vwgb
K5M L4M
15. GwmW e„wói †ejvq Aat‡ÿcY e„wó‡Z pH M cÖvBgvwi A¨vj‡Kvnj
M3M N2M
N †m‡KÛvwi A¨vj‡Kvnj
8. ppm Gi †ÿ‡Î- Gi gvb KZ n‡Z cv‡i?
3 K 6.9 L 6.5 25. A‡_©v-c¨viv wb‡`©kK-
i. 1 ppm = 1 g/m
M 5.8 N 5.3 i. - NO2
ii. 1 ppm = 1mg/L
ii. - CH3
iii. 1 ppm = 1 mg/L 16. 27 °C ZvcgvÎvq O2 Gi RMS Gi gvb iii. - OCH3
wb‡Pi †KvbwU mwVK? KZ? wb‡Pi †KvbwU mwVK?
K i I ii L i I iii K 453.23 ms -
L 463.34 ms -
K i I ii L ii I iii
M ii I iii N i, ii I iii M 473.45 ms- N 483.56 ms-1 M i I iii N i, ii I iii
31

†mU : M h‡kvi †evW© 2022 welq †KvW : 1 7 7

mgq-20 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-15
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| †h †Kv‡bv c‡b‡ivwU cÖ‡kœi DËi `vI| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. 1.5 atm Pv‡c ZvcgvÎvq GKwU M¨v‡mi 8.
25°C †KvbwU B‡jKUªbxq cwievnx? 18. A¨v‡iv‡gwUK ej‡q mwµqKvix g~jK
AvqZb 0.5 L n‡j D³ ZvcgvÎvq wØ¸Y Pv‡c K CuSO4 `ªeY L Cu Zvi †KvbwU?
M¨vmwUi AvqZb KZ n‡e? M MwjZ NaCl N KuvPbj K - NH2 L - CHO
K 0.45 L L 0.35 L 9. wb‡Pi †KvbwU RviK I weRviK Dfqiƒ‡c M - NO2 N - COOH
M 0.25 L N 0.15 L
wµqv K‡i? 19. †KvbwUi m‡e©v”P e¨vcb nvi we`¨gvb?
g wb‡Pi DÏxcKwU c‡o 2 I 3 bs cÖ‡kœi 2+ 2+
K Hg L Fe K Aw·‡Rb L wg‡_b
DËi `vI :
M Sn4+ N Fe3+
CCl4 H 2 O/Zn M nvB‡Wªv‡Rb N B‡_b
A + O 3 ¾¾® B ¾¾® 2CH 3 CHO 10. 10 MÖvg FeSO4 †K RvwiZ Ki‡Z KZ MÖvg
g wb‡Pi DÏxcK Abymv‡i 20 I 21 bs
2. DÏxc‡Ki wewµqvq 'Zn' e¨envi bv Ki‡j cUvwkqvg WvB‡µv‡gU cÖ‡qvRb?
Kx Drcbœ nq? cÖ‡kœi DËi `vI :
K 3.22 MÖvg L 3.87 MÖvg
K H - COOH CaO
M 4.12 MÖvg N 4.44 MÖvg CH3 - CH2 - COONa + NaOH ¾®
D
L H - CHO
11. †Kvl wewµqv : H 2 + Cu 2+ = 2H+ + Cu D³ A + Na2CO3
M CH3 - CH2 - OH
N CH3 - COOH †Kv‡li A¨v‡bv‡Wi wewµqv †KvbwU? 20. DÏxc‡Ki 'A' †hŠMwU-
3. DÏxc‡Ki 'A' †hŠMwU- K 2H+ + 2e ® H2 K †cÖv‡cb L †cÖvwcb
L Cu ® Cu2 + 2e
i. R¨vwgwZK mgvYyZv cÖ`k©b K‡i M weD‡Ub N B‡_b
M H2 ® 2H+ + 2e
ii. cÖwZ¯’vcb wewµqv †`q bv 21. DÏxc‡Ki wewµqvwU Kx bv‡g cwiwPZ?
N Cu2+ + 2e ® Cu
iii. ÿvixq KMnO4 `ªe‡Yi mv‡_ MøvBKj K DU©R wewµqv
12. MwjZ Ae¯’vq Lv`¨ je‡Y 5.0 amp gvÎvq
Drcbœ K‡i
we`y¨r 10 min a‡i Pvjbv Ki‡j K¨v‡_v‡W L wW-Kv‡e©vw·‡jkb
wb‡Pi †KvbwU mwVK?
Kx cwigvY avZz Rgv n‡e? M DU©R wdwUj wewµqv
K i I ii L i I iii
K 0.52 MÖvg L 0.62 MÖvg N wd«‡Wj µvd&&U wewµqv
M ii I iii N i, ii I iii
4. cÖgvY nvB‡Wªv‡Rb ZworØv‡ii wef‡ei gvb M 0.72 MÖvg N 0.82 MÖvg 22. wdDivb †hŠ‡M mÂviYkxj B‡jKUªb
KZ? 13. CuSO4 + KI ® Cu2I2 + K2SO4 + I2 KqwU?
K 0.0 V L - 1.34 V wewµqvwU‡Z weRviK †KvbwU? K 2wU L 4wU
M + 1.00 V N + 1.76 V K Cu2+
L I2
M 6wU N 8wU
5. Na2CO3 Ges HCl Gi cÖkgb wewµqvq M K+ N I-
23. cvwb‡Z `ªexf‚Z Aw·‡Rb Kx bv‡g
Dchy³ wb‡`©kK †KvbwU? 14. wMÖb nvDR M¨v‡mi g‡a¨ wb‡¤œi †KvbwU
cwiwPZ?
K wg_vBj A‡iÄ evqygÐ‡j me‡P‡q †ewk _v‡K?
K COD L TDS
L wg_vBj †iW K CO2 L CH4
M BOD N DO
M wjUgvm M O3 N CFC
15. wb‡Pi †KvbwU jyBm GwmW? 24. wb‡Pi †KvbwU wK‡Uv-Bbj U‡UvgvwiZv
N †dbjd _¨vwjb
K AlCl3 L H2CO3 cÖ`k©b K‡i?
[* we.`ª. : mwVK DËi K I L Dfq]
M NH3 N H3PO4 K †cÖvcvbj-2
6. wg_vBj Kvwe©bj †KvbwU?
16. HSO4 Gi AYyeÜx ÿviK †KvbwU?
-
L †cÖvcv‡bvb
K CH3 - OH
L HCHO K H2SO4 L SO42-
M †cÖvcvb¨vj
M H-COOH M H2 O N SO32-
N †cÖvcvbwqK GwmW
N CH3-CH2-OH 17. 0° †m. ZvcgvÎvq GKwU M¨v‡mi eM©gj
~
7. †Wwm‡gvjvi `ªe‡Y `ªexf‚Z 25. NaOH Gi 2.5% `ªe‡Yi NbgvÎv ppm
500 ml Mo eM©‡eM cÖwZ †m‡K‡Û 49330 cm.
†mvwWqvg Kve©‡bU Gi cwigvY KZ MÖvg? M¨vmwUi AvYweK fi KZ? GK‡K KZ?
K 2.65 MÖvg L 5.30 MÖvg K 52 L 32 K 2.5 ´ 102 L 2.5 ´ 103

M 6.30 MÖvg N 10-160 MÖvg M 28 N 16 M 2.5 ´ 104 N 2.5 ´ 105

†mU : L Kzwgjøv †evW© 2022 welq †KvW : 1 7 7

mgq-20 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-15
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| †h †Kv‡bv c‡b‡ivwU cÖ‡kœi DËi `vI| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. M¨v‡mi MwZkw³ wbf©i K‡i- 9. 18 °C ZvcgvÎvq 0.8 atm Pv‡c †Kv‡bv 19. Kvwe©j A¨vwgb cixÿv Øviv wb‡Pi †KvbwU
K Pvc I AvqZ‡bi Dci M¨v‡mi NbZ¡ 2.25 g/L, Gi AvYweK fi kbv³ Kiv hvq?
L ZvcgvÎv I M¨v‡mi cÖK…wZi Dci KZ? K †K¬v‡ivdig
M Pvc I ZvcgvÎvi Dci K 67.11 g/mol L 36.24 g/mol L †m‡KÛvwi A¨vwgb
N M¨v‡mi cÖKw… Z I Nb‡Z¡i Dci M 24.36 g/mol N 23.63 g/mol
M Uviwmqvwi A¨vwgb
2. †Kvb †hŠ‡Mi AYy‡Z bvB‡Uªv‡Rb m‡e©v”P 10. B‡jK‡UªvwdwjK hyZ wewµqvq †Kvb †hŠMwU N bvB‡Uªv‡ebwRb
RviY Ae¯’v cÖ`k©b K‡i‡Q? †ewk mwµq?
g DÏxcKwU c‡o 20 I 21 bs cÖ‡kœi DËi
K NH2OH L N2 H4 K †c›UvBb L †c›Uvb¨vj
`vI :
M NH3 N N3 H M weDUvbj N weDwUb
(i) NH3 + HCO3- HoI NH4+ + CO32-
3. †Kvb mgvYyZv Avcbv-Avcwb NU‡Z cv‡i?
11. †mwgKÛv›Ui wn‡m‡e e¨en„Z nq- (ii) HCO3- + H2O HoI H2CO3 + OH-
K Ae¯’vb mgvYyZv
K Ge L Zn 20. DÏxc‡Ki †KvbwU‡K Dfag©x c`v_© ejv
L MvVwbK mgvYyZv M Cu N Al
hvq?
M †gUvgvwiRg 12. Fe2+ + MnO 4- + H+ ¾® Fe3+ + Mn 2+ +
K NH3 L H2 O
N U‡UvgvwiRg H 2O-G †iW· wewµqvi †ÿ‡Î-
M CO3 2-
N HCO3-
4. Ag+/Ag Ges Au3+/Au Aa©‡KvlØ‡qi i. Fe2+ GKwU RviK 21. (i) I (ii) bs wewµqvi g~j cv_©K¨ n‡jv-
cÖgvY weRviY wefe + 0.80 V Ges ii. MnO4- Gi Mn2+ Avqb weRvwiZ
i. Rjxq `ªeY
+ 1.56 V| G `ywU Aa©‡Kvl Øviv MwVZ
n‡q‡Q ii. pH
†Kv‡li wefe KZ?
iii. 5wU B‡jKUªb MÖnY K‡i‡Q iii. H+
K + 0.76 V L - 0.76 V
wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK?
M + 2.36 V N - 2.36 V
K i I ii L i I iii Ki L ii
5. ˆRe I A‰Re Dfq ai‡bi `~lY Rvi‡Yi
M ii I iii N i, ii I iii M iii N i, ii I iii
Rb¨ O2 Gi cwigvY wb‡`©k K‡i-
13. Kve©vbvq‡bi myw¯’wZi µg †KvbwU? 22. wb‡Pi †Kvb M¨vmwUi e¨vcb nvi me©vwaK?
K pH L DO
K 3° > 2° > 1° L 1° > 2° > 3° K NH3 L CH4
M COD N BOD
M 1° > 3° > 2° N 2° > 1° > 3° M SO2 N CO2
g DÏxcKwU ch©‡eÿY Ki :
14. †KvbwU Zxeª GwmW? 23. A¨vb_ªvwmb AYy‡Z p (cvB) B‡jKUªb
OH
| K HNO3 L HNO2 msL¨v KZ?
KMnO 4/KOH
CH 3 - CH - CH 3 ¾¾¾¾¾® A + H 2O K6 L 10
M H2SO4 N H2SO3
6. ÔAÕ †hŠ‡M KqwU eÜb B‡jKUªb Av‡Q? 15. GKwU Aw·‡Rb cigvYyi fi KZ? M 14 N 16
K 24 L 20 -23 -23
24. †gvjvi `ªe‡Yi †ÿ‡Î cÖ‡hvR¨-
K 2.66 ´ 10 g L 3.76 ´ 10 g
M8 N6
M 1.33 ´ 10-22 g N 1.88 ´ 10-22 g i. GwU GKwU cÖgvY `ªeY
7. ÔAÕ wb‡Pi †Kvb wewµqv cÖ`k©b K‡i?
16. wb‡Pi †Kvb ZworØvi RviY Aa©‡Kvl ii. `ªe‡Yi NbgvÎv 1 M
i. A¨vjWj Nbxfeb
†evSvq? iii. 1 L `ªe‡Yi 0.1 †gvj cwigvY c`v_©
ii. wK¬‡gbmb weRviY
K Zn2+/Zn L Zn/Zn2+
iii.K¨vwbRv‡iv wewµqv `ªexf‚Z _v‡K
M Cu2+/Cu N H+/H2, Pt
wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK?
17. wb‡Pi †Kvb †hŠ‡M ÔbvBUªvBjÕ Kvh©Kix
K i I ii L ii I iii K i I ii L i I iii
g~jKwU we`¨gvb?
M i I iii N i, ii I iii M ii I iii N i, ii I iii
K CH3NH2 L CCl3NO2
8. 3H 2S + 2HNO 3 ¾® 2NO + 3S + 4H 2O M CH3CN N NH4CNO 25. AgNO3 `ªe‡Y 1.2 amp we`y¨r KZÿY
wewµqvwU‡Z H2S Gi f‚wgKv Kx? 18. `ªe‡Yi †gvjvwiwUi GKK n‡”Q- Pvjbv Ki‡j 1.61 g Ag Rgv n‡e?
K UvBUªv›U L UvB‡UªU K 40 min L 30 min
K g/L L mol/L
M RviK N weRviK M mol/kg N N/V M 25 min N 20 min
33

ˆmU : N PÆMÖvg †evW© 2022 welq ˆKvW : 1 7 7

mgq-20 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-15
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| †h †Kv‡bv c‡b‡ivwU cÖ‡kœi DËi `vI| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. Kve©wbj g~jK kbv³Ki‡Y wb‡Pi †KvbwU 11. wb‡Pi M¨vm †Rv‡oi g‡a¨ †KvbwUi g DÏxc‡Ki Av‡jv‡K 19 I 20 bs cÖ‡kœi
e¨envi nq? e¨vc‡bi nvi mgvb? DËi `vI :
L †dwjs `ªeY K CO2 I NO2 L CO2 I N2O [O]
K 2, 4-DNPH A ¾¾¾® †cÖvcv‡bvb
M U‡jb weKviK N jyKvm weKviK M CO2 I CO N N2 O I NO2
19. DÏxc‡Ki A n‡”Q-
2. AlCl3 `ªe‡Y we`y¨r PvR© cÖevwnZ 12. `ywU M¨v‡mi Mo MwZkw³ KLb mgvb nq?
1.0 F K 1° A¨vj‡Kvnj
K Pvc mgvb L 3° A¨vj‡Kvnj
Ki‡j mwÂZ Al Gi cwigvY-
K 1 mole L 3 mole L AvYweK fi mgvb M 2° A¨vj‡Kvnj
1 1 M ZvcgvÎv mgvb N Am¤ú„³ A¨vj‡Kvnj
M mole N mole
2 3
N AvqZb mgvb 20. DÏxc‡Ki A Gi mv‡_ jyKvm weKviK
3. 30 mL 0.1 M FeSO4 Gi A¤øxq `ªeY‡K
13. w¯’i ZvcgvÎvq wbw`©ó f‡ii M¨v‡mi †hvM Ki‡j Kx N‡U?
UvB‡Uªkb Ki‡Z 30 mL KZ NbgvÎvi AvqZb ebvg Pv‡ci †jLwPÎwU †Kvb i. mv‡_ mv‡_ mv`v Aat‡ÿc c‡o
KMnO4 `ªeY jvM‡e?
ai‡bi? ii. 5-10 wgwbU ci mv`v Aat‡ÿc c‡o
K 0.01 M L 0.02 M
K cive„ËKvi L Awae„ËvKvi iii. Aat‡ÿc c‡o bv
M 0.03 M N 0.06 M
M e„ËvKvi N mij‰iwLK wb‡Pi †KvbwU mwVK?
4. me‡P‡q kw³kvjx weRviK wb‡Pi †KvbwU?
14. STP †Z 3.2 g GKwU M¨vm 2.24 wjUvi Ki L ii
K Li L Al M iii N i, ii I iii
M Fe N Zn
AvqZb `Lj Ki‡j M¨vmwU n‡Z cv‡i-
21. C4H10O w`‡q MwVZ mKj mgvYy‡Ki g‡a¨
5. wb‡Pi †KvbwU jyBm GwmW? K Cl2 L CO2
M N2 N O2 †KvbwU Av‡jvK mgvYyZv cÖ`k©b Ki‡e?
K SO3 L NH3
15. cÖkg gva¨‡g KMnO4 †KvbwU‡Z cwiYZ K cÖvBgvwi weDUvbj
M H2 O N CN-
nq? L †m‡KÛvwi weDUvbj
6. wb‡Pi †KvbwU cÖvBgvwi ÷¨vÛvW© c`v_©?
K MnSO4 L MnO M Uviwkqvwi weDUvbj
K mvjwdDwiK GwmW
M MnS N MnO2 N weDUvb¨vj
L nvB‡Wªv‡K¬vwiK GmwW 16. wMÖMbvW© weKviK †_‡K †Kvb¸‡jv ms‡kølY 22. †m‡KÛvwi wb‡`©kK ZworØvi n‡jv-
M dmdwiK GwmW Kiv hvq? i. Pt, H2 (1 atm) / H+ (1 M)
N A·vwjK GwmW i. CH3 - CH2 - OH ii. Ag(s), AgCl(s) / HCl(aq)
iii. Hg(l), Hg2Cl2(s) / KCl(aq)
7. wb‡Pi †KvbwU A¨vj‡Kvnj bq? ii. CH3 - NO2
iii. CH3 - CH2 - COOH
wb‡Pi †KvbwU mwVK?
K C6H13OH L C6H11OH
wb‡Pi †KvbwU mwVK? K i I ii L ii I iii
M C6H7OH N C6H5OH
M i I iii N i, ii I iii
8. w¯’i ZvcgvÎvq RMS †e‡Mi mwVK µg K i I ii L ii I iii
M i I iii N i, ii I iii
23. 2H2O2(aq) ¾® 2H2O(l) + O2(g) GB
†KvbwU?
CH3
wewµqvi gva¨‡g 16 g O2 ˆZwi‡Z KZ MÖvg
K H2 > N2 > CO2
| H2O2 jvM‡e?
L CO2 > O2 > H2 17. CH3 - CH - CH = CH - CH3 Gi K 68 L 34
M N2 > CO2 > He
IUPAC bvgKiY wb‡Pi †KvbwU? M 17 N 8.5
N O2 > H2 > CO2
K 4-wg_vBj †c›U-2-Bb 24. wg_vBj A‡iÄ A¤øxq `ªe‡Y †Kvb eY©
9. 25 mL 0.25 M H2SO4 `ªe‡Yi NbgvÎv
L 2-wg_vBj †c›U-3-Bb cÖ`k©b K‡i?
ppm GK‡K KZ?
M 2-wg_vBj †cw›Ub K eY©nxb L Kgjv
K 12225 L 24500
N 4-wg_vBj †cw›Ub M njy ` N †Mvjvcx jvj
M 3650 N 5475
10. wb‡Pi †KvbwU we`y¨r mycwievnx bq? 18. Ag Gi Zwor ivmvqwbK Zzj¨v¼ Gi gvb 25. K¨v‡jv‡gj ZworØv‡i wb‡Pi †KvbwU
KZ? e¨envi nq?
K Kcvi L Kve©b
K 0.000289 L 0.000658 K HgCl2 L MnO2
M wmjfvi N A¨vjywgwbqvg M Hg2Cl2 N NH4Cl
M 0.000329 N 0.001118
34

†mU : N wm‡jU †evW© 2022 welq †KvW : 1 7 7

6. 100 mL †mwg‡gvjvi `ªeY ˆZwi‡Z Kx

K RCHO L RCOX ii. Fe2+ RvwiZ nq
cwigvY Na2CO3 cÖ‡qvRb? M RCOOH N RCOOR
iii. 6wU B‡jKUªb ¯’vbvšÍwiZ nq
K 0.53 g L 1.06 g 16. A †hŠ‡Mi mv‡_ wK‡Uvb †hŠ‡Mi wewµqvq
M 5.30 g N 10.60 g wb‡Pi †KvbwU mwVK?
Kx †hŠM Drcbœ n‡e?
7. †gvjvi M¨vm aªæeK R-Gi SI GKK K i I ii L i I iii
K 3° A¨vj‡Kvnj
†KvbwU? M ii I iii N i, ii I iii
L 2° A¨vj‡Kvnj
-1 -1
K LatmK mol L JK mol -1 -1
24. Aa©‡gvj CO2 M¨v‡m Aw·‡Rb cigvYyi
-1 -1 -1 -1
M 1° A¨vj‡Kvnj
M ergK mol N cal.K mol msL¨v KZ?
N Kve©w·wjK GwmW
8. †KvbwU jyBm ÿviK? K 1wU
17. †Kvb †jLwPÎwU †M-jymvK m~Î‡K mg_©b
K CO L BF3
L 2wU
M BeCl2 N SO3 K‡i?
M 3.01 ´ 1023wU
9. ndg¨vb wW‡MÖ‡Wkb Øviv †KvbwU Drcbœ
K L N 6.023 ´ 1023wU
nq?
25. †KvbwU cÖvBgvwi ÷¨vÛvW© c`v_©?
K GwmW A¨vgvBW
K CH3 COOH
L cÖvBgvwi A¨vwgb
L Na2C2O4.2H2O
M †m‡KÛvwi A¨vwgb M N
M Na2S2O3.5H2O
N Kve©w·wjK GwmW N KMnO4
35

†mU : N ewikvj †evW© 2022 welq †KvW : 1 7 7

mgq-20 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Yg© vb-15
[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U
Kjg Øviv m¤ú~Y© fivU Ki| †h †Kv‡bv c‡b‡ivwU cÖ‡kœi DËi `vI| cÖwZwU cÖ‡kœi gvb 1| cÖkc
œ ‡Î †Kv‡bv cÖKvi `vM/wPý †`qv hv‡e bv|]
1. 0.05 M H2SO4 `ªe‡Yi NbgvÎv ppm 11. Zn/Zn2+(E° = 0.76 V) A¨v‡bvW n‡j 18. GwmW e„wói †ejvq Aat‡ÿcY m„wó‡Z pH
GK‡K KZ? wb‡Pi †KvbwU K¨v‡_vW wnmv‡e eënvi Kiv Gi gvb KZ n‡Z cv‡i?
K 4500 L 4900 K 6.9 L 6.5
hv‡e?
M 14500 N 14900 M 5.8 N 5.3
2. jeY †mZz‡Z wb‡Pi †KvbwUi `ªeY eënvi K Co/Co2+ (E° = + 0.28 V)
19. SN1 wewµqvq-
Kiv hvq? L Mg/Mg2+ (E° = + 2.36 V)
i. wewµqv avc `ywU
K KNO2 L KNO3 M Ca/Ca2+ (E° = + 2.87 V)
M KMnO4 N K2CO3
ii. mwµqZvi µg-
N Al/Al3+ (E° = + 1.166 V)
3. 300 K ZvcgvÎvq He I O2 M¨v‡mi RMS 3° RX > 2° RX > 1° RX > CH 3 X
12. †Kvb †hŠMwU Av‡qv‡Wvdg© wewµqv †`q bv? wewµqvi nvi n¨v‡jv‡R‡bv A¨vj‡Kb I
iii.
†e‡Mi AbycvZ KZ? K CH3OH
K 16 : 1 L8:1 wbDwK¬IdvBj Df‡qi Dci wbf©ikxj
L CH3COCH3
M4:1 N1:4 wb‡Pi †KvbwU mwVK?
M CH3CH(OH)CH3
[* we.`ª. : mwVK DËi 8 : 1 K i I ii L i I iii
N CH3CH2OH
4. ˆRe †hŠ‡M - COOH g~jK kbv³Ki‡Y M ii I iii N i, ii I iii
13.
wb‡Pi †KvbwU eën„Z nq? 20. mwÜ ZvcgvÎvi wb‡P c`v‡_©i Ae¯’v †KvbwU?
K FeCl3 L AgNO3 K ev®ú L Zij
M NaHCO3 N NaNO3 M Zij ùwUK N cøvRgv
5. 250 mL 0.1 M NaOH `ªe‡Y KZ MÖvg 21. wb‡Pi †KvbwU †g‡mv †hŠM?
NaOH we`¨gvb? K CH3(CH)OHCH(OH)COOH
K 0.5 L 1.0 L CH3CH(OH)CH(Cl)CH3
M 1.5 N 2.0
cÖ`Ë `ªeY `ywUi †ÿ‡Î-
M CH3CH(OH)CH(OH)CH3
6. d¨viv‡Wi m~Î cÖ‡hvR¨- i. 1bs `ªeY GKwU cÖgvY `ªeY
N CH3 - CH2CH(OH)CH3
i. B‡jKUª‡bi PvR© MYbvq ii. 1 I 2bs `ªe‡Y `ª‡ei fi wfbœ 22. MnO4- + H+ + Fe2+ ¾® Drcv`; GB
ii. avZzi cwigvY wbY©‡q iii. 1bs `ªeY Øviv 2bs `ªeY‡K c~Y© wewµqvq-
iii. Zwor we‡køl¨ cwievnxi †ÿ‡Î cÖkwgZ Kiv hv‡e i. MnO4- weRvwiZ nq
wb‡Pi †KvbwU mwVK? ii. Fe2+ RvwiZ nq
wb‡Pi †KvbwU mwVK?
K i I ii L ii I iii
K i I ii L i I iii iii. 5wU B‡jKUªb ¯’vbvšÍwiZ nq
M i I iii N i, ii I iii
wb‡Pi †KvbwU mwVK?
7. cÖgvY Ae¯’vq 10.0 L CH4 M¨v‡m AYyi M ii I iii N i, ii I iii
K i I ii L i I iii
msL¨v KZ? 14. wb‡Pi †Kvb †hŠ‡M mÂiYkxj p B‡jKUªb M ii I iii N i, ii I iii
K 0.2689 ´ 1023 Av‡Q?
L 2.689 ´ 1023
23. M/M || N /N, E°M/M = 0.76 volt Ges
2+ +
2+

23 K C2H2 L C2H4 E°N/N+ = - 0.4 volt. cÖ`Ë †KvlwUi e.m.f

M 26.89 ´ 10
M C6H6 N C3H8
N 0.02689 ´ 1023 KZ volt?
8. 5A we`y¨r 30 s a‡i †Kv‡bv B‡jK‡Uªv‡W 15. SATP I STP †Z ZvcgvÎvi cv_©K¨ KZ K + 1.16 L + 0.36
cÖevwnZ Ki‡j cÖevwnZ we`y¨‡Zi PvR© KZ °C? M - 0.36 N - 1.16
Kzj¤^? K 273 L 25 24. 4gH 2 M¨v‡mi Ae¯’ vi mgxKiY †KvbwU?

(P + nVa) (V - nb) = nRT

2
K 0.15 L 1.5 M0 N - 273
K 2
M 15 N 150 16. wb‡Pi †KvbwU MÖvnv‡gi e¨vcb m~Î?
L (P + ) (V - 2b) = 2RT
9. NH3 ÿviag©x KviY GwU- 2a
K r1 M1 = r2 M2 2
V
i. †Rvo B‡jKUªb `vZv 1
M (P + ) (V - 2b) = 2RT
Lrµ 4a
ii. Gwm‡Wi mv‡_ wewµqv K‡i M 2
V
iii. †cÖvUb MÖn xZv r1 M1
N (P + ) (V - b) = RT
M = Nrµ M 4a
wb‡Pi †KvbwU mwVK? r2 M2 2
V
K i I ii L ii I iii 17. 1F we`y¨r Pvjbv Ki‡j wb‡Pi †Kvb avZzi 25. wb‡Pi †Kvb †hŠMwU Optical Isomerism
M i I iii N i, ii I iii †`Lvq?
AvqbwU K¨v‡_v‡W AwaK cwigv‡Y mwÂZ
10. †KvbwU AwaKZi w¯’wZkxj Kv‡e©vwbqvg K CH2(NH2)COOH
n‡e?
Avqb? L CH3CH(NH2)COOH
KK L Zn
K ÅCR3 L ÅCHR2 M (CH3)2C = CHCl
M ÅCH2R N ÅCH3 M Ca N Al N CH3CH2COOH
36

†mU : L w`bvRcyi †evW© 2022 welq †KvW : 1 7 7

4. wewµqvwU‡Z-
Fe2+ + Sn4+ ® Fe3+ + Sn2+ O wb‡Pi †KvbwU mwVK?
|| K i I ii L ii I iii
i. weRviK
Fe2+ K - C - OH L CH - OH
M i I iii N i, ii I iii
ii. Sn4+ weRvwiZ nq
| 18. 0.98 M Na2CO3 `ªe‡Yi kZKiv NbgvÎv
iii. Sn2+ B‡jKUªb Z¨vM K‡i‡Q M - C - OH N - CH2OH
| KZ?
wb‡Pi †KvbwU mwVK?
12.
Ges 3° A¨vj‡Kvn‡ji cv_©K¨
1°, 2° K 9.80 L 10.39
K i I ii L ii I iii M 13.52 N 15.42
wbY©‡q †Kvb weKviK e¨envi Kiv nq?
M i I iii N i, ii I iii 19. SO32- Gi AbyeÜx GwmW †KvbwU?
K U‡jb weKviK
5. †KvbwU cigk~b¨ ZvcgvÎv? K H2SO3 L H2SO4
L wMÖMbvW© weKviK
K 0°C L 25°C M HSO4- N HSO3-
M 273K N - 273°C M jyKvm weKviK 20. 2 mol Al K¨v‡_v‡W Rgv Ki‡Z Kx cwigvY
6. 0.5 F = KZ Kzj¤^? N †dnwjs weKviK we`y¨r cÖ‡qvRb?
K 48,250 C L 96,500 C 13. mgAvqZb 0.1 M NaOH Ges 0.1 M K 1.5 F L 2.0 F
M 1,93,000 C N 2,89,500 C H2SO4 `ªe‡Yi cÖKw… Z Kx n‡e? M 3.0 F N 6.0 F
7. CH3COOH(aq) + KOH(aq) ® 21. CH3 - CH = C(CH3) - CH2OH
K wbi‡cÿ L Dfag©x
CH3COOK(aq) + H2O D³ wewµqvq †hŠMwUi IUPAC bvg Kx?
M A¤øxq N ÿvixq
K 2-wg_vBj weDU-2-Bb-1-Aj
Dchy³ wb‡`©kK n‡jv- 14. †KvbwU jyBm ÿviK?
L 2-wg_vBj-2-weDwUbj
K wg_vBj A‡iÄ K BF3 L AlCl3
M A¨vjvBj A¨vj‡Kvnj
L †dbd_¨vwjb M H2 O N FeCl3
N wg_vBj-2-weDwUb-1-Aj
M wg_vBj †iW 15. Zwor ivmvqwbK †Kv‡l-
22. 0.5 M HNO3 `ªe‡Yi NbgvÎv ppm GK‡K
N †h †Kv‡bv wb‡`©kK i. K¨v‡_vW †_‡K A¨v‡bv‡W we`y¨r
KZ n‡e?
8. wb‡Pi †jLwPÎwU M¨v‡mi †Kvb m~Î‡K cÖevwnZ nq K 15750 L 31500
mg_©b K‡i? ii. we`y¨r kw³ ivmvqwbK kw³‡Z cwiYZ M 63000 N 49000
nq 23. cvbxq R‡j WHO Aby‡gvw`Z COD Gi
M¨v‡mi AvqZb

16
12
V (cm3)

iii. A¨v‡bv‡W RviY N‡U m‡e©v”P gvb KZ?

8
wb‡Pi †KvbwU mwVK? K 6 ppm L 10 ppm
4
M 100 ppm N 500 ppm
K i I ii L ii I iii
0 100 200 300 400 24. †KvbwUi Zwor ivmvqwbK Zzj¨v¼ †ewk?
M i I iii N i, ii I iii
ZvcgvÎv (K) K Zn L Cu
g wb‡Pi DÏxcKwU co Ges 16 I 17 bs M Fe N Ag
K e‡q‡ji m~Î cÖ‡kœi DËi `vI : 25. †KvbwU A¨v‡iv‡gwUK nvB‡WªvKve©b bq?
L †Mjymv‡Ki m~Î CCl4 Zn
P + O3 ¾¾® A ¾¾¾® B + C K L
S
M Pvj©‡mi m~Î H2O, D
M N
N A¨v‡fv‡M‡Wªv m~Î C †hŠMwU wZb Kve©bwewkó wK‡Uvb
37

†mU : K gqgbwmsn †evW© 2022 welq †KvW : 1 7 7

4. †mwgKÛv›Ui wn‡m‡e e¨en„Z nq- i. B_vi 19. 3H2 S + 2HNO3 ¾® 2NO + 3S + 4H2 O

K Cu L Al ii. WvB B_vBj B_vi wewµqvwU‡Z H2S Gi f‚wgKv Kx?

M Zn N Ge iii. B‡_vw· B‡_b K RviK L weRviK
5. B‡jK‡UªvdvBj n‡jv- M UvB‡UªU N UvBUªv›U
wb‡Pi †KvbwU mwVK?
i. AlCl3
ii. BF3 K i I ii L ii I iii 20. Zwor we‡køl‡Y †KvbwU Av‡M PvR©gy³ n‡e?
iii. BeCl2 M i I iii N i, ii I iii K Cu2+ L H+
wb‡Pi †KvbwU mwVK? 14. †KvbwU MÖvnv‡gi e¨vcb m~Î? M Pb 2+
N Na+
K i I ii L ii I iii
K r1 M1 = r2 M2 21. 1 †gvj M¨v‡mi MwZkw³ n‡”Q-
M i I iii N i, ii I iii
1 3RT 3nRT
Lrµ K L
6. `ªe‡Yi †gvjvwiwUi GKK n‡”Q- M NA 2
N mol r1 M1 3R 3RT
K L M = M N
V kg r2 M2 NA 2
mol g 22. Zn-Gi cÖg vY RviY wefe KZ?
M N Nrµ M
L L
7. 1 †gvj K¨v‡_v‡W mwÂZ Ki‡Z 15. †Kvb †hŠ‡M †K¬vwi‡bi RviY gvb m‡e©v”P?
Ag K - 0.76 V L + 0.76 V

AgNO3 `ªe‡Yi KZ d¨viv‡W Zwor Pvjbv K HClO L HClO2 M - 0.34 V N + 0.34 V

Ki‡Z n‡e? M HClO3 N HClO4 23. NO2- Avq‡bi AbyeÜx A¤ø n‡”Q-
K1F L 2F g wb‡Pi DÏxc‡Ki Av‡jv‡K 16 I 17 bs K HNO3 L HNO2
M3F N4F cÖ‡kœi DËi `vI : -
M HNO2 N NO3-
8. Fe2+ + Sn4+ HoI Fe3+ + Sn2+;
D
CH3CH2CH2Br + KOH(alc) ¾®
g wb‡Pi DÏxcK n‡Z 24 I 25 bs cÖ‡kœi
wewµqvwU‡Z-
ÔAÕ + KBr + H2O DËi `vI :
i. Fe2+ RvwiZ n‡q‡Q
ii. Sn2+ weRviK 16. DÏxc‡Ki ÔAÕ †hŠM n‡”Q-
iii. Fe3+ GKwU B‡jKUªb MÖnY K‡i‡Q i. AcÖwZmg A¨vjwKb
wb‡Pi †KvbwU mwVK? ii. R¨vwgwZK mgvYyZv cÖ`k©b K‡i
K i I ii L ii I iii
iii. Br2 `ªeY‡K eY©nxb K‡i
M i I iii N i, ii I iii 24. Q we›`y‡Z ZvcgvÎv KZ?
wb‡Pi †KvbwU mwVK?
9. A¨vjwK‡bi mvaviY ms‡KZ †KvbwU? K - 300 °C L 0 °C
K i I ii L ii I iii
K CnH2n+2 L CnH2n+1
M - 273 °C N 100 °C
M CnH2n N CnH2n-2 M i I iii N i, ii I iii

10. 1 atm = KZ c¨vm‡Kj? 25. e‡q‡ji m~‡Îi mv‡_ DÏxc‡Ki wP‡Îi

17. DÏxc‡Ki wewµqvwU-
K 1.01325 ´ 102 Pa mgš^‡q MwVZ m¤úK© n‡”Q-
i. SN2 †gKvwbRg AbymiY K‡i
L 1.01325 ´ 10-2 Pa K PV = K L PV = KT
M 1.01325 ´ 105 Pa ii. b-H Acmvi‡Y Kve©vbvqb m„wó K‡i
P V
N 1.01325 ´ 10-5 Pa iii. Drcv‡`i Iqvj‡Wb Bbfvm©b N‡U M =K N =K
T T
38

mKj †ev‡W©i
kxl©¯’vbxq K‡jRmg~‡ni cÖkœcÎ
39

wgR©vcyi K¨v‡WU K‡jR, Uv½vBj welq ˆKvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} M. I bs wewµqvi wµqv‡KŠkj wjL| 3
0.5g 0.6g N. †ebwRb ej‡q GKvwaK cÖwZ¯’vcb wewµqvi †ÿ‡Î A I
101.325kPa 77cm(Hg) B-Gi mwµqZvi Zzjbv Ki| 4
0.300dm3 4´10-4m3
27 °C CH3 -OH(aq) A
27 °C
A-M¨vm B-M¨vm 5 } (i) CH3 - CH2 - CH2 - C - Cl
H -OH(alc) B
K. Pv‡ci CGS GKK Kx? 1
L. H2SO4 GwmW HNO3 †_‡K kw³kvjx †Kb? 2 (ii) CH3H + Cl2 = CH 3Cl + HCl, m~h©v‡jv‡Ki UV Av‡jvi Dcw¯’wZ‡Z|
M. ÷cKK †Lvjv Ae¯’vq (A + B) wgkÖ‡Yi †gvU Pvc K. CH3 - CH2 - C(CH3) OH - CHO †hŠMwUi IUPAC
wbY©q Ki| 3 bvg wjL| 1
N. A M¨v‡mi RMS †eM B M¨v‡mi RMS †eM A‡cÿv L. †cÖvwc‡bi I‡RvbxKiY wewµqv e¨vL¨v Ki| 2
†ewk bv Kg n‡e? MvwYwZKfv‡e we‡kølY Ki| 4 M. (ii) bs wewµqvi gy³ g~jK †KŠkjwU e¨vL¨v Ki| 3
2} `ywU ZworØvi wef‡ei gvb wb¤œiƒc : N. A I B Drcv`‡bi †ÿ‡Î †Kvb †KŠkj Aej¤^b Kiv
i. Fe2+ + 2e ® Fe; E° = -0.44V nq? eY©bv Ki| 4
ii. Pb2+ + 2e ® Pb; E° = -0.12V 6}
mvj‡dU `ªeY w`‡q DÏxc‡Ki †ÿ‡Î Zwor ivmvqwbK †Kvl 60mL 120mL
MVb K‡i 20amp we`y¨r 20 wgwbU a‡i cÖevwnZ Kiv n‡jv| †mwg‡gvjvi †Wwm‡gvjvi
HCl NaOH
K. emf Kx? 1
L. Zn avZz Cu A‡cÿv AwaK mwµq †Kb? 2 `ªeY-I `ªeY-II
M. DÏxc‡Ki †jW Gi Zwor we‡kølYKv‡j K¨v‡_v‡W wK K. FYvZ¥K RviY msL¨v Kx? 1
cwigvY avZz mwÂZ ev AcmvwiZ n‡e? wnmve Ki| 3 L. 0.2M NaOH `ªe‡Yi ppm NbgvÎv KZ? 2
N. DÏxc‡K Aa©‡Kvl `ywUi mv‡_ cÖgvY nvB‡Wªv‡Rb M. `ªeY-I †K cÖkwgZ Ki‡Z wK cwigvY †mwg‡gvjvi KOH
ZworØvi Avjv`vfv‡e hy³ Ki‡j MwVZ †Kv‡li cÖ‡qvRb n‡e? cÖkgb wewµqvi mvnv‡h¨ wnmve Ki| 3
Zzjbvg~jK we‡kølY Ki| 4 N. `ªeY-I I `ªeY-II GK‡Î wgwkÖZ Ki‡j wgkÖ‡Yi cÖK…wZ
3} wK n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
P 1V1 P 2V2 P3V3 7} A¤øxq (H2SO4) `ªe‡Y FeSO4 †hŠM K2Cr2O7-Gi mv‡_
H2 N2 NH3
wewµqv K‡i wewfbœ Drcv` ˆZwi K‡i| GLv‡b FeSO4 n‡jv
(22.45g) (50.67g) (3.38g)
weRviK Ges K2Cr2O7 RviK|
K. AbyeÜx ÿviK Kx? 1 K. cÖgvY `ªeY Kx? 1
L. HCl I SO2 Gi g‡a¨ †KvbwUi e¨vcb nvi †ewk? e¨vL¨v Ki| 2 L. 13% NaOH `ªe‡Yi †gvjvwiwU KZ? 2
M. hw` M¨vm¸‡jv‡K GK‡Î wgwkÖZ Kiv nq Z‡e cÖ‡Z¨KwU M. Avqb B‡jKUªb c×wZ‡Z wewµqvwUi mgZv Ki| 3
M¨v‡mi †gvj fMœvsk wbY©q Ki| 3 N. 10g FeSO4 †K RvwiZ Ki‡Z wK cwigvY DÏxc‡Ki
N. 70 °C ZvcgvÎv I 15.0 L AvqZ‡bi cv‡Î RviK c`v_© cÖ‡qvRb n‡e? wnmve Ki| 4
M¨vm¸‡jv‡K wgwkÖZ Kiv nq Z‡e cÖ‡Z¨KwU M¨v‡mi Av`ª©
8} i. (CH3)3 COH + HCl (conc) ¾¾® A + H2O
AvswkK Pvcmn M¨v‡mi †gvU Pvc wbY©q Ki| 4 ZnCl2
A Abv`ª©
ii. CH3 - CH2 - CH2 - OH + HCl (conc) ¾¾® B + H2O
AlCl3 ZnCl2
4 } (i) + CH3Cl
K. AcÖwZmg Kve©b Kx? 1
B L. gvK©wbKf wbqgwU e¨vL¨v Ki| 2
HNO3 M. A †K A¨vj‡KvnwjK KOH `ªe‡Y DËß Ki‡j wK
(ii)
H2SO4
NU‡e? mgxKiYmn wjL| 3
K. MvVwbK mgvYyZv Kx? 1 N. A I B Gi g‡a¨ †KvbwU SN1 wµqv‡KŠkj Aej¤^b
L. A¨vjwK‡bi kbv³KiY e¨vL¨v Ki| 2 K‡i? KviYmn we‡kølY Ki| 4
40

ivRkvnx K¨v‡WU K‡jR welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} 5}
SO2 B M¨vm
10 g 20°C
30°C
cvÎ-1 cvÎ-2
[Pzbvcv_‡ii we‡hvR‡b B M¨vm cvIqv hvq]
K. jyKvm weKviK Kx? 1 K. wjwgwUs wewµqK Kv‡K e‡j? 1
L. H2O B‡jK‡UªvdvBj, bvwK wbDwK¬IdvBj? e¨vL¨v Ki| 2 L. NaOH wK †m‡KÛvwi ÷vÛvW© c`v_©? e¨vL¨v Ki| 2
M. cvÎ-1 Gi M¨v‡mi MwZkw³ wbY©q Ki| 3 M. †hŠM ÔBÕ -Gi Kvh©Kix g~jK kbv³Ki‡Yi c×wZ
N. cvÎ-2 Gi M¨v‡mi ZvcgvÎvi Kx cwieZ©b Ki‡j cÖ‡qvRbxq wewµqvmn †jL| 3
DÏxc‡Ki Dfq M¨v‡mi RMS †eM mgvb n‡e? N. †hŠM B I C-Gi ms‡hvRb wewµqvi †KŠkj wfbœ-
MvwYwZKfv‡e †`LvI| 4 KviYmn we‡kølY Ki| 4
2} H+/H2O
X
6 } P + CH3Mgl ¾¾¾® A (1°)
Y H+/H2O
PV Q + CH3Mgl ¾¾¾® B (2°)
L atm Av`k© M¨vm Z
H+/H2O
R + CH3Mgl ¾¾¾® C (3°)
[GLv‡b P, Q Ges R wZbwU wfbœ ai‡bi Kve©wbj †hŠM]
P atm ® K. RviY msL¨v Kx? 1
K. BOD Kx? 1 L. Fe3+ GKwU RviK-e¨vL¨v Ki| 2
L. W¨vwb‡qj †Kv‡li †Kvl wewµqv †jL| 2 M. DÏxc‡Ki A, B I C-Gi g‡a¨ cv_©K¨ Kivi GKwU
M. DÏxc‡Ki Z M¨v‡mi Rb¨ mgxKiY cÖwZôv Ki| 3 ivmvqwbK cixÿv eY©bv Ki| 3
N. Kx Kx k‡Z© X Ges Y M¨vm, Z M¨v‡mi gZ AvPiY N. wbDwK¬IwdwjK ms‡hvRb wewµqvq P, Q Ges R- Gi
Ki‡e? hyw³ `vI| 4 mwµqZvi mwVK µg Dchy³ KviYmn wbY©q Ki| 4
3 } (i) Fe(s)/Fe2+ (aq) ççCu2+ (aq)/Cu(s) 7 } Fe + H2SO4 (dil) ® A + H2
(ii) Ag(s)/Ag+(aq) çç Zn2+(aq)/Zn(s) 4.0 g
†`Iqv Av‡Q, E°Fe/Fe2+ = 0.44 V, E°Cu2+/Cu0 = 0.34 V ‘A’-Gi m¤ú~Y© `ªeY‡K RvwiZ Ki‡Z H2SO4 wgwkÖZ 50 mL
E°Ni/Ni2+ = 0.25 V, E°Zn2+/Zn = –0.76 V 0.1 M K2Cr2O7 `ªeY cÖ‡qvRb nq|
K. AvB‡mv_vg© Kx? 1 K. U‡UvgvwiRg Kx? 1
L. w¯’i ZvcgvÎvq M¨v‡mi Nb‡Z¡i Dci ZvcgvÎvi cÖfve L. wdDivb A¨v‡iv‡gwUK †hŠM wK? e¨vL¨v Ki| 2
e¨vL¨v Ki| 2 M. ‘A’-Gi mv‡_ H2SO4 wgwkÖZ KMnO4 -Gi wewµqv
M. †Kvl (i)-G 160 mA we`y¨r 10 wgwbU cÖevwnZ n‡j c~Y© K‡i mgZvKiY Ki| 3
K¨v‡_v‡W Kx cwigvY avZz mwÂZ n‡e wnmve Ki| 3 N. DÏxc‡Ki †jŠn avZzi bgybv weï× wK? MvwYwZKfv‡e
N. DÏxc‡Ki †Kvl (i) Ges (ii)-Gi g‡a¨ †KvbwUi †Kvl we‡kølY Ki| 4
wewµqv ¯^Ztù‚Z©fv‡e NU‡e? MvwYwZKfv‡e e¨vL¨v Ki| 4 8}
4}
H2SO4 `ªeY KOH `ªeY
300 mL
20 mL 0.5 M
5 ´ 104 ppm

cvÎ-A cvÎ-B
K. gvK©wbKf wbqg Kx? 1
K. Mo gy³ c_ Kx? 1 L. Kve©b-Kve©b wØeÜ‡bi †P‡q Kve©b-Kve©b wÎeÜb
-
L. HSO4 wK GKwU KbRy‡MU ÿviK? e¨vL¨v Ki| 2 ÿz`ªZi †Kb? e¨vL¨v Ki| 2
M. 'Y' †hŠM †_‡K ÔZÕ †hŠM Kxfv‡e cvIqv †h‡Z cv‡i? M. A cv‡Î H2SO4-Gi cwigvY (MÖv‡g) wbY©q Ki| 3
e¨vL¨v Ki| 3 N. cvÎ-A I cvÎ-B-Gi `ªe‡Yi wgkÖ‡Yi cÖK…wZ Kx n‡e?
N. ÔRÕ KLb †gUv wb‡`©kK n‡e? Dchy³ Z_¨mn we‡kølY Ki| 4 pH wnmvemn MvwYwZKfv‡e we‡kølY Ki| 4
41

†dŠR`vinvU K¨v‡WU K‡jR, PÆMÖvg welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} CONH2
30 °C ÷cKK 30 °C D
350 mm(Hg) 450 mm(Hg) 5} + Br2 + NaOH(conc) ¾® X (cÖavb Drcv`)
550 mL 425 mL
0.450 g 0.325 g Abv`ª© FeCl3 NaOH, D HCl, D
+ Cl2 ¾¾¾¾¾® Y ¾¾¾¾® A ¾¾¾® B
A M¨vm B M¨vm D 150 atm
K. gy³ g~jK Kx? 1 K. U‡UvgvwiRg wK? 1
L. †gvjvwiwU ZvcgvÎvi Dci wbf©ikxj †Kb? 2 L. Kve©wbj g~jK _vKv m‡Ë¡I R - COOH †K›`ªvKlx©
M. DÏxc‡K D‡jøwLZ ÷cKK †Lvjv Ae¯’vq 40 °C ms‡hvRb wewµqv †`q bv †Kb? 2
ZvcgvÎvq M¨vm wgkÖ‡Yi †gvU Pvc wbY©q Ki| 3 M. X †_‡K wKfv‡e UjyBb cÖ¯Z
‘ Ki‡e? 3
N. DÏxc‡K DwjøwLZ A I B M¨v‡mi g‡a¨ †KvbwU Av`k© N. Y Ges B Gi g‡a¨ †KvbwU B‡jKUªbvKlx© cÖwZ¯’vcb
M¨vm AvPiY †_‡K wePz¨wZ †ewk †`Lv‡e? we‡kølY wewµqvq AwaK mwµq n‡e? KviYmn e¨vL¨v Ki| 4
Ki| 4 6}
O + _ 2.5 mA
3
2 } A (2-†K¬v‡iv-2-wg_vBj †cÖv‡cb) + NaOH(alc) ® B ¾¾® 40 min
CCl4
H2O
C (I‡RvbvBW) ¾¾¾® P + Q + ZnO 200 mL
Zn, D 0.5 M
[Q †hŠM U‡jb weKvi‡Ki mv‡_ wewµqv K‡i
bv] Cr2(SO4)3

K. cÖgvY ZworØvi wefe Kx? 1

L. ev¯Íe M¨v‡mi Pvc Av`k© M¨v‡mi Pvc A‡cÿv Kg K. †iwmwgK wgkÖY Kx? 1
†Kb? 2 L. A¨vwbwj‡bi bvB‡Uªkb †gUv Ae¯’v‡b N‡U †Kb? 2
M. B †hŠMwU HBr Gi mv‡_ wewµqvi wµqv †KŠkj wjL M. DÏxc‡K we`y¨r cÖevwnZ n‡j wK cwigvY B‡jKUªb
hLb ˆRe cviA·vBW Abycw¯’Z _v‡K| 3 Zv‡ii g‡a¨ w`‡q cÖevwnZ n‡e? wnmve Ki| 3
N. P Ges Q Gi g‡a¨ †K›`ªvKlx© ms‡hvRb wewµqvq N. Zwor cÖevwnZ nIqvi ci Cr3+ Avq‡bi cwigvY wbY©q
†KvbwU AwaK mwµq? KviYmn we‡kølY Ki| 4 Ki| [Cr Gi cvigvYweK fi 52] 4
3} 7 } A/A3+ (aq) || B2+/B E°A3+/A = - 1.66 V
M¨vm ZvcgvÎv Pvc fi AvqZb E°B2+/B = - 0.14 V
(°C) K. AbyeÜx GwmW Kx? 1
A 27 102 kPa 0.164 g 250 mL L. NaOH I Cl2 Gi g‡a¨ wewµqvwU AmvgÄm¨ wewµqv-
B 30 95 ´ 103 0.2 g 0.25 dm3 e¨vL¨v Ki| 2
Nm-2 M. 25 °C ZvcgvÎvq DÏxc‡Ki †ÿ‡Î †Kvl wefe wbY©q Ki| 3
K. Av‡qvwWwgwZ wK? 1 N. wRsK cv‡Î A3+ I B2+ `ªe‡Yi g‡a¨ †KvbwU‡K
L. H2O Dfagx© †Kb? D`vniYmn wjL| 2 `xN©mgq msiÿY Kiv hv‡e? emf wbY©‡qi gva¨‡g
M. A M¨v‡mi GKwU AYyi MwZkw³ wbY©q Ki| 3 DË‡ii h_v_©Zv g~j¨vqb Ki| [Zn Gi cÖgvY weRviY
N. GKB ZvcgvÎv I Pv‡c A I B Gi g‡a¨ †KvbwUi wefe - 0.76 V] 4
e¨vcb nvi †ewk n‡e? we‡kølY Ki| 4 8}
4}
4.9 g H2SO4 200 mL 23 mL 0.05 M 500 mg
70 mL H2C2O4
100 mL †Wwm‡gvjvi KMnO4 Avqib U¨ve‡jU
`ªeY º +
cvwb‡Z †mwg‡gvjvi `ªeY jNy H2SO4
GK A¤øxq
`ªexf‚Z wØ-A¤øxq ÿvi 25 mL `ªeY
ÿvi
`ªeY-I `ªeY-II `ªeY-III X Y Z

K. cÖvBgvix ÷¨vÛvW© c`v_© wK? 1 K. ivmvqwbK Zzj¨vsK Kx? 1

L. AwfRvZ avZz Pt ivRA‡¤ø `ªexf‚Z nq- wewµqvmn L. cixÿvMv‡i Zzwg wKfv‡e Gwm‡Uvb I †cÖvcvb¨v‡ji
e¨vL¨v Ki| 2 g‡a¨ cv_©K¨ Ki‡e? 2
M. `ªeY-I †K cÖkwgZ Ki‡Z KZ mL 1.5% (w/v) M. DÏxc‡Ki X I Y `ªe‡Y jNy H2SO4 wgwkÖZ Ki‡j
NaOH `ªeY cÖ‡qvRb? 3 msNwUZ wewµqvwUi Avqb B‡jKUªb c×wZ‡Z mgZv Ki| 3
N. `ªeY I, II I III Ab¨cv‡Î wgwkÖZ Ki‡j wgwkÖZ `ªeY N. Y `ªeY e¨envi K‡i Z cv‡Î Avqib U¨ve‡j‡Ui
A¤øxq bvwK ÿvixq n‡e? MvwYwZKfv‡e we‡kølY Ki| 4 kZKiv weï×Zv wbY©q Ki| 4
42

wm‡jU K¨v‡WU K‡jR welq ˆKvW : 1 7 7

K. ppm ej‡Z Kx †evS? 1

L. AlCl3 GKwU jyBm GwmW-e¨vL¨v Ki| 2
M. Dc‡ii DÏxcKwU c~Y© Ki Ges B Gi †i‡Rvb¨vÝ
K. gy³ gyjK Kx? 1 G‡K †`LvI †h GwU †ebwRb ejq‡K mwµqKvix wK
L. A¨vjKvBb-1 A¤øxq nIqvi KviY e¨vL¨v Ki| 2 bv? 3
M. DÏxc‡Ki ÔXÕ Ae¯’v‡b STP †Z M¨v‡mi AvqZb N. A †_‡K B cÖ¯w‘ Zi wewµqvi †KŠkj e¨vL¨v Ki| 4
wbY©q Ki| 3 6 } Zn/ZnSO4(aq) çç CuSO4/Cu G‡`i E Gi gvb h_vµ‡g +
0

N. A, B Ges C M¨v‡mi ms‡KvPbkxjZv ¸Yv¼ (Z) Gi 0.76V Ges + 0.34V

gvb wewfbœ nIqvi KviY we‡kølY Ki| 4 K. gy³ g~jK Kx? 1
2} L. †dbj A‡cÿv †d‡bv·vBW Avqb †ewk ÿvixq-e¨vL¨v
24.63 atm 50 atm Ki| 2
1200 K 300 K
M. DÏxc‡K DwjøwLZ †Kv‡li †Kvl wewµqvmn eY©bv Ki| 3
iL 0.35 L
0.25 mol 1.0 mol N. hw` Cu ZworØv‡ii cwie‡Z© Ag ZworØvi e¨envi
A-M¨vm Y-M¨vm Kiv n‡Zv Z‡e Kx ai‡bi cwieZ©b n‡Zv- †Zvgvi
K. DDT Gi MvVwbK ms‡KZ †jL| 1 DË‡ii mwVKZv hvPvB Ki| Ag GK E0 Gi gvb +
L. HSO4- Avqb wK AYyeÜx ÿvi- e¨vL¨v Ki| 2 0.80 V| 4
M. A M¨v‡mi GKwU cigvYyi MwZkw³ wbY©q Ki| 3 7}
N. DÏxc‡Ki †Kvb M¨vm ev¯Íe M¨v‡mi b¨vq AvPiY 50 mL 40 mL 40 mL
0.05 M 0.1 M 0.05 M
Ki‡e? MvwYwZKfv‡e e¨vL¨v Ki| 4 Na2CO3 HCl
HCl `ªeY
3} `ªeY `ªeY
A B C
K. jyKvm weKviK Kx? 1
L. DU©R wewµqv e¨vL¨v Ki| 2
K. cÖgvY `ªeY Kv‡K e‡j? 1 M. A-cv‡Îi NbgvÎv 0.01 M Ki‡Z n‡j wK cwigvY
L. †K¬v‡ivdg© I bvBwUªK Gwm‡Wi wewµqvwU e¨vL¨v Ki| 2 cvwb †hvM Ki‡Z n‡e? 3
M. (i) bs wewµqvwU c~Y© Ki Ges ÔXÕ ˆZwii †KŠkj N. A, B Ges C cv‡Îi wgwkÖZ `ªe‡Yi cÖK…wZ †Kgb n‡e?
†jL| 3 MvwYwZKfv‡e we‡kølY Ki| 4
N. (ii) bs wewµqv †KŠkj †jL Ges X I Y Gi g‡a¨ 8 } 1.5 g †jvnvi Zvi jNy H2SO4 Gwm‡W Wzev‡bv Av‡Q| m¤ú~Y©
cv_©K¨ wbiƒcY Ki| 4 `ªeY‡K RvwiZ Ki‡Z 15 mL 0.3 M KMnO4 `ªeY cÖ‡qvRb|
KOH(aq) [O] [O] Avqib Zv‡ii g‡a¨ †fRv‡ji kZKiv cwigvY MYbv Ki‡Z
4 } Y––––––® Z––––––––––––® M ––––––––––––® T
K2Cr2O7,H2SO4 K2Cr2O7,H2SO4 n‡e|
K. wbDwK¬IdvBj Kx? 1 K. Av‡jvK mwµq †hŠ‡Mi kZ©mg~n †jL| 1
L. hw` T A¨vwj‡dwUK †hŠM nq Z‡e B‡jK‡UªvbvKl©x L. cvwb GKwU Dfag©x c`v_© e¨vL¨v Ki| 2
wewµqv cÖ`k©b Ki‡e-e¨vL¨v Ki| 2 M. DÏxc‡Ki msNwUZ wewµqvwU c~Y© Ki Ges Avqb
M. Z †_‡K wKfv‡e †cÖvcvbj cÖ¯Z‘ Kiv hvq? 3 B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
N. hw` M †hŠM 20% NaOH Gi mv‡_ wewµqv K‡i Z‡e N. bgybv †jvnv avZzwU weï× wK bv-MvwYwZKfv‡e we‡kølY
Kx NU‡e †KŠkjmn e¨vL¨v Ki| 4 Ki| 4
43

bUi †Wg K‡jR, XvKv welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
s-eøKfz³ †gŠwjK O2 M¨vm M. B bgybvq RviK c`v‡_©i mv‡_ A¤øxq H2C2O4 Gi
1 } (I) M¨vm 'A2' 2m3
0.132 atm
wewµqv Avqb-B‡jKUªb c×wZ‡Z mgZv Ki| 3
1.5 m3 27 °C
N. DÏxc‡Ki Z_¨ eënvi K‡i C cv‡Îi `ªe‡Yi AvqZb
wbY©q m¤¢e Kx? MvwYwZKfv‡e we‡kølY Ki| 4
(II) +KOH(aq) +KCN 2 H +/H O
5 } C ¬¾¾¾¾¾ [(CH 3)2CHCl] ¾¾¾® A ¾¾¾®B + NH 3
K. †iwmwgK wgkÖY Kv‡K e‡j? 1 K. Aa©‡Kvl Kx? 1
L. †dbjd_¨vwjb Gi eY© cwieZ©b pH Gi mv‡_ m¤úwK©Z †Kb? 2 L. ClO4 GKwU g„`y ÿviK †Kb?
–
2
M. (I) bs DÏxc‡Ki ÷cKK Ly‡j w`‡j M¨vm wgkÖ‡Yi †gvU Pvc M. DÏxc‡Ki B †hŠMwU wPwýZ K‡i wMÖMbvW© weKvi‡Ki
hw` 9.399 kPa nq Z‡e A2 M¨vmwUi fi wbY©q Ki| 3 mvnv‡h¨ Gi cÖ¯w‘ Z †`LvI| 3
N. (II)bs DÏxc‡Ki KvPb‡ji evg cÖvšÍ †_‡K 15.25 cm `~‡i ev`vgx N. DÏxc‡Ki C cÖ¯w‘ Zi †ÿ‡Î Rjxq KOH eënvi Gi cwie‡Z©
†auvqv Drcbœ n‡j DÏxc‡Ki Z_¨ eënvi K‡i ARvbv M¨vmwUi A¨vj‡Kvnjxq KOH eënvi Kiv hv‡e wK bv? we‡kølY Ki| 4
AvYweK fi wbY©q m¤¢e Kx bv Zv MvwYwZKfv‡e we‡kølY Ki| 4 6}
100 mL 20% (w/v) 500 mL 0.25 M
2}
wØ-ÿviKxq ˆRe GK A¤øxq A‰Re A+B
GwmW ÿvi
A B C
K. GwmW e„wó wK? 1 (M = 90) (M = 40)

L. †gvjvwiwU ZvcgvÎvi Dci wbf©ikxj †Kb? 2 K. T.N.T. Gi ms‡KZ wjL| 1

M. DÏxc‡Ki wewµqv m¤úbœ B †hŠMwUi Drcv`b †KŠkj e¨vL¨v Ki| 3 L. HCO3 I SO4 cvwbi LiZvi Rb¨ `vqx¾ e¨vL¨v Ki| 2
– 2–

M. C cv‡Îi wgkÖ‡Yi pH MYbv Ki| 3

N. DÏxc‡Ki X I Y †K wPwýZ K‡i †K›`ªvKlx© ms‡hvRb
N. A cv‡Îi `ªeY‡K B cv‡Îi `ªeY Øviv UvB‡Uªkb Ki‡Z
wewµqvq †KvbwU AwaK mwµq Zv we‡kølY Ki| 4
Dchy³ wb‡`©kK †KvbwU? †jLwP‡Îi gva¨‡g e¨vL¨v Ki| 4
3} (I) "X"
7} CH3Cl
M¨v‡mi MwZkw³ 442.59 J (A¨vjKvBb †jŠnbj Abv`ª© AlCl 3
C
Gi cÖ_g B
30 °C G M¨vmwUi fi 8.316 g m`m¨) 'A' 450 ºC Mvp HNO3 Sn + HCl
D E
CO2
Mvp H2SO4
He K. ppm Kx? 1
Av`k© M¨vm L. Cu Gi cÖgvY weRviY wefe + 0.34V ej‡Z wK eyS? 2
(II) PV
M. DÏxc‡Ki B †_‡K C Drcv`b †KŠkj eY©bv Ki| 3
P N. DÏxc‡Ki B, D I E †K wPwýZ Ki Ges B‡jK‡UªvwdwjK
cÖwZ¯’vcb wewµqvq G‡`i mwµqZvi µg we‡kølY Ki| 4
K. Kv‡e©vwbqvg Avqb Kx? 1
8} `„k¨cU-1 : 400 cm3 0.6M ZnSO4 `ªe‡Y 30A Zwor 5 min
L. wdDivb‡K A¨v‡iv‡gwUK †hŠM ejv nq †Kb? 2
10 sec mgq a‡i Pvjbv Kiv n‡jv|
M. DÏxcK (I) Gi Z_¨ e¨envi K‡i X M¨vmwUi r.m.s
`„k¨cU-2 : A3+, B2+, C2+, D+ Gi cÖgvY weRviY wef‡ei
†eM MYbv Ki| 3 gvb h_vµ‡g, – 1.66V, + 0.44V, – 0.22V I + 0.80V
N. DÏxcK (II) Gi M¨vm `ywUi wePz¨wZi aib wfbœ †Kb? K. `k©K Avqb Kx? 1
we‡kølY Ki| 4 L. diwgK GwmW †dnwjs `ªeY cixÿv †`q †Kb? 2
4} Fe(6.5 g)
M. `„k¨cU-1 Gi `ªe‡Y Zwor we‡køl‡Yi ci Aewkó Zn2+ Avqb‡K
20 mL 0.5 M 0.7 M
jNy H2SO4 KMnO4 K2Cr2O7 PvR©gy³ Ki‡Z KZ Avav‡bi cÖ‡qvRb n‡e MYbv Ki| 3
A B C N. 30° ZvcgvÎvq A (0.3M) I B (0.25M) Ges C (0.18M)
3+ 2+ 2+

K. cigk~b¨ ZvcgvÎv Kx? 1 I D+(0.15M) Øviv MwVZ †Kv‡li †KvbwU AwaK †fv‡ëR
L. wd«‡Wj µ¨vdU wewµqvq Abv`ª© AlCl3 e¨envi Kiv nq †Kb? 2 Drcbœ Ki‡e? MvwYwZKfv‡e we‡kølY Ki| 4
44

wfKviæbwbmv b~b K‡jR, XvKv welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
K2Cr2O7 K2Cr2O7 5}
1 } A ¾¾¾¾¾® X ¾¾¾¾¾® CH3COOH
+H2SO4 Conc. +H2SO4 Conc.
K2Cr2O7 K2Cr2O7
B ¾¾¾¾¾® Y ¾¾¾¾¾® CH3COOH + CO2
+H2SO4 Conc. +H2SO4 Conc.
K2Cr 2O7 K2Cr 2O7
C ¾¾¾¾¾® Z + CO2 ¾¾¾¾¾® CH3COOH + CO2
+H2SO4 Conc. +H2SO4 Conc.
K. gvK©wbK‡fi bxwZwU wjL| 1
K. DNP Gi MvVwbK ms‡KZ wjL| 1
L. Zwor ivmvqwbK †Kv‡l jeY †mZz eënvi Kiv nq L. †`LvI †h, b¨vc_vwjb GKwU A¨v‡iv‡gwUK †hŠM| 2
†Kb? 2 M. A †_‡K D ˆZwii wewµqv †KŠkj eY©bv Ki| 3
M. A, B I C Gi g‡a¨ cv_©K¨m~PK cixÿv mgxKiYmn N. hyw³mn C I D Gi mwµqZvi Zzjbvg~jK Av‡jvPbv
eY©bv Ki| 3 Ki| 4
N. X I Y Df‡qB Av‡qv‡Wvdig wewµqv cÖ`k©b K‡i 6}
wKš‘ G‡ì GKwU weRviK wnmv‡e KvR Ki‡jI 6g †jvnvi AvKwiK 40 mL 0.1 M KMnO4
AciwU Zv K‡i bv¾ Dchy³ hyw³ I wewµqvmn Zv
H2SO4 `ªeY I bs cv‡Îi
e¨vL¨v Ki| 4 100 mL `ªeY 25 mL `ªeY
2} I II
I II
17°C 20 °C
DÏxc‡Ki KMnO4 `ªeY 2q cv‡Îi `ªeY‡K m¤ú~Y© cÖkwgZ
1235 mm-Hg 163 kPa
750 ml 650 ml K‡i|
2.25g 2.78g K. †iwmwgK wgkÖY Kv‡K e‡j? 1
A gas B gas L. Cu Gi Zwor ivmvqwbK Zzj¨vsK KZ Ges wKfv‡e? 2
K. A¨v‡iv‡gwUwmwU Kv‡K e‡j? 1 M. II bs cv‡Î msNwUZ wewµqvwUi mgZvK…Z mgxKiYwU
L. Fe2O3 Gi A¤øZ¡ KZ Ges †Kb? 2 wbY©q Ki| 3
M. B M¨v‡mi Rb¨ RMS †eM wbY©q Ki| 3 N. Fe-AvKwi‡K †fRv‡ji kZKiv cwigvY MvwYwZKfv‡e
N. A I B M¨v‡mi cwi‡e‡ki Dci cÖwZwµqv KviYmn
wbY©q Ki| 4
eY©bv Ki| 4
CCl H2O
7 } RX + NH3 ® A + HX
4
3 } A + O3 ¾¾® B ¾¾® C + D RX + A ® B + HX
Zn dust
RX + B ® C + HX
GLv‡b, C I D h_vµ‡g 3 I 1
Kve©bwewkó A¨vjwWnvBW|
K. digvwjb Kv‡K e‡j? 1
K. †Ud&jb Gi MvVwbK ms‡KZ wjL| 1
L. Kve©w·j g~jK mbv³Kvix cixÿvwU mgxKiYmn eY©bv
L. CH3 – CH(NH2) – COOH Av‡jvK mgvYyZv cÖ`k©b
Ki‡e wK-bv †`LvI| 2 Ki| 2
M. A Gi bvg I ms‡KZ Dchy³ wewµqvmn wbY©q Ki| 3 M. A, B I C Gi cv_©K¨m~PK cixÿv mgxKiYmn wjL| 3
N. A Øviv MwVZ m¤¢ve¨ mgvYy¸‡jvi bvg I ms‡KZ wjL N. A, B I C Gi kw³gvÎvi µgwU Dchy³ hyw³mn e¨vL¨v
Ges G‡ì †Kvb& ai‡bi mgvYyZv we`¨gvb †`LvI| 4 Ki| 4
4} 8 } i. A/A3+; E0 = + 1.66V
20 cm3 32 cm3 60 cm3 80 cm3 ii. B/B2+; E0 = + 0.25V
0.12 M 0.25 M 0.15 M 0.32 M iii. C/C+; E0 = – 0.80V
H2SO4 `ªeY HCl `ªeY HNO3 `ªeY NaOH `ªeY 4 LiAlH
I II III IV K. wewµqvwU c~Y© Ki : CHO ¾¾¾® ? 1
K. †iK&wUdvBW w¯úwiU Kv‡K e‡j? 1 L. †`LvI †h, nvB‡Wªv‡RbKve©‡bU Avqb GKwU
L. SI GK‡K †gvjvi M¨vm aªæeK R Gi gvb wbY©q Ki| 2 A¨vg&wd‡cÖvwUK Avqb| 2
3+
M. II bs cv‡Îi `ªe‡Y evwni n‡Z wK cwigvY cvwb †hvM M. A/A C +
/C
(1.2 ´ 10–5M) (4.5M) 3
Ki‡j GwU †mw›U‡gvjvi `ªe‡Y cwiYZ n‡e? 3
N. DÏxcK `ªeY¸‡jvi wgkÖYwU‡K m¤ú~Y©iƒ‡c cÖkwgZ 20°C ZvcgvÎvq †KvlwUi wefe wbY©q Ki|
Ki‡Z wK cš’v Aej¤^b Ki‡e? MvwYwZKfv‡e we‡kølY N. BSO4 `ªeY‡K A I C Øviv wbwg©Z Dfq cv‡Î ivLv
Ki| 4 m¤¢e wK? MvwYwZKfv‡e hyw³ cÖ`k©b Ki| 4
45

AvBwWqvj ¯‹j
z A¨vÛ K‡jR, gwZwSj, XvKv welq †KvW : 1 7 7
mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} 5 } (i) R - COOH
PCl5
¾¾®
H2
P ¾¾¾¾® Q
0.50 g 0.65 g R (1 Kve©bwewkó) Pd-BaSO4
0.35 dm3 440 mL
760 mm 770 mm PCl5 H2
(Hg) (Hg) (ii) C6H5 - COOH ¾¾® X ¾¾¾¾® Y
Pd-BaSO4
X 30 °C Y 30 °C
K. Abye¨vcb Kv‡K e‡j? 1
[X Ges Y M¨vm ci¯úi wewµqv K‡i bv|] L. FeCl3 jyBm GwmW †Kb? e¨vL¨v Ki| 2
K. Zwor we‡køl‡Yi d¨viv‡Wi cÖ_g m~ÎwU wjL| 1 M. Q †hŠ‡Mi Kvh©Kix g~jK Kxfv‡e mbv³ Ki‡e?
L. b¨vc_vwjb A¨v‡iv‡gwUK †hŠM †Kb? e¨vL¨v Ki| 2 wewµqvmn e¨vL¨v Ki| 3
M. DÏxc‡Ki X Ges Y M¨vm wgkÖ‡Yi †gvU Pvc MYbv N. DÏxc‡Ki Q Ges Y †hŠ‡Mi g‡a¨ †KvbwU K¨vwbRv‡iv
Ki, hLb ÷cKK †Lvjv _v‡K| 3 wewµqv w`‡e? hyw³mn we‡kølY Ki| 4
N. DÏxc‡Ki X Ges Y M¨v‡mi e¨vcb nv‡ii Zzjbv Ki| 4 6}
2} 30 mL A¤øxq 3g
Q †Wwm‡gvjvi KMnO4
Fe AvKwiK
A·vwjK 12 mL
P + H2SO4
PV GwmW `ªeY `ªeY
X Y Z
P K. Kve©bvqb Kx? 1
[Q M¨v‡mi ZvcgvÎv 30 °C I Pvc 2 atm] L. g„`y GwmW I Zxeª ÿv‡ii UvB‡Uªk‡b †dbd_¨vwjb‡K
K. wiW· wewµqv Kx? 1 wb‡`©kK wn‡m‡e eënvi Kiv nq †Kb? MÖv‡di
L. CGS GK‡K R Gi gvb MYbv Ki| 2 mvnv‡h¨ e¨vL¨v Ki| 2
M. DÏxc‡Ki Q M¨v‡mi AvqZb 4L n‡j, Q M¨v‡mi M. X `ªeY Øviv Y `ªeY‡K weRvwiZ Ki‡j Y `ªe‡Yi
AYyi msL¨v MYbv Ki| 3 NbgvÎv KZ n‡e? MvwYwZKfv‡e e¨vL¨v Ki| 3
N. †Kvb †Kvb k‡Z© DÏxc‡Ki Q M¨vm, P M¨v‡mi b¨vq N. DÏxc‡Ki †mwg‡gvjvi Y Ges Z `ªeY wgwkÖZ K‡i †jvnvi
AvPiY K‡i hyw³mn we‡kølY Ki| 4 AvKwi‡Ki †fRv‡ji kZKiv cwigvY MYbv Ki| 4
3} 7}
1° A¨vj‡Kvnj GK
4.5% MOH
+ Na ¾® Y + H2 250 mL
X ÿviKxq A¤ø
2 Kve©bwewkó 300 mL †mwg‡gvjvi `ªeY
`ªeY A `ªeY B
+ R - Cl ¾®
Y
(`yB Kve©bwewkó)
R
Z + NaCl K. Aa©‡Kvl Kx? 1
K. RviY msL¨v Kv‡K e‡j? 1 L. wd«‡Wj µ¨vdU A¨vjKvB‡jkb wewµqvq Abv`ª© AlCl3
L. ndg¨vb ÿz`ªvskKiY wewµqv e¨vL¨v Ki| 2 eënvi Kiv nq †Kb? 2
M. DÏxc‡K A `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3
M. DÏxc‡Ki X †hŠM †_‡K Kxfv‡e Z cv‡e? wewµqvmn
N. DÏxc‡Ki A I B `ªeYØq GK‡Î wgwkÖZ Ki‡j
e¨vL¨v Ki| 3
wgwkÖZ `ªe‡Yi cÖK…wZ wKiƒc n‡e? MvwYwZKfv‡e
N. DÏxc‡Ki X †hŠM †_‡K Z †hŠM‡K Kxfv‡e cv_©K¨
we‡kølY Ki| 4
Ki‡e? hyw³mn we‡kølY Ki| 4
8 } wb‡¤œ KwZcq avZzi weRviY wef‡ei gvb †Ìqv nj :
4}
30 °C
(i) P2+(aq) / P(s) = + 0.40 V; [P2+] = 0.1 M
(ii) Q3+(aq) /Q(s) = + 1.66 V; [Q3+] = 0.5 M
(iii) R2+(aq)/R(s) = + 0.44 V
K. cÖgvY ZworØvi wefe Kx? 1
K. A¤ø-ÿviK wb‡`©kK Kv‡K e‡j? 1 L. bgybv cvwb‡Z COD Gi gvb BOD A‡cÿv †ewk
L. H2O2 RviK Ges weRviK Dfq wn‡m‡e KvR K‡i †Kb? e¨vL¨v Ki| 2
†Kb? e¨vL¨v Ki| 2 M. DÏxc‡Ki (i) I (ii) ZworØvi Øviv MwVZ †Kv‡li emf
M. DÏxc‡Ki B †hŠM †_‡K C †hŠM Drcv`‡bi †KŠkj e¨vL¨v Ki| 3 MYbv Ki| 3
N. DÏxc‡Ki C Ges D †hŠ‡Mi g‡a¨ †KvbwU †_‡K N. DÏxc‡Ki (iii) bs ZworØv‡ii R `ªeY‡K P I Q
2+

B‡jKUªbvKlx© cÖwZ¯’vcb wewµqvq mn‡R A‡_©v I avZzi wbwg©Z cv‡Îi †KvbwU‡Z ivLv wbivc`?
c¨viv Drcv` cvIqv hv‡e? hyw³mn we‡kølY Ki| 4 MvwYwZKfv‡e we‡kølY Ki| 4
46

ivRDK DËiv g‡Wj K‡jR, XvKv welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } 1.5 g †jvnvi AvKwi‡K jNy H2SO4 G `ªexf‚Z K‡i 100 mL 5 } Fe/FeSO4(aq, 1M) || CuSO4(aq, 2M)/Cu
Kiv n‡jv| G `ªe‡Yi 25 mL UvB‡Uªkb Ki‡Z 0.02 M †hLv‡b, E°Fe2+/Fe = - 0.44 V Ges E°Cu2+/Cu = + 0.34 V
K2Cr2O7 `ªe‡Yi 22.0 mL cÖ‡qvRb n‡jv| K. msKU Pvc Kx? 1
K. AbyeÜx ÿviK Kx? 1 L. Ag Gi Zwor ivmvqwbK Zzj¨vsK 0.00111 g-1 ej‡Z
wK eySvq? 2
L. ˆRe †hŠ‡M Kxiƒ‡c Kve©w·j g~j‡Ki Dcw¯’wZ kbv³
M. DÏxc‡Ki weRviY Aa©‡Kv‡li Zworwe‡køl¨ c`v_©‡K
Ki‡e? 2
`¯Ívi cv‡Î ivLv hv‡e wK? MvwYwZKfv‡e we‡kølY
M. UvB‡Uªk‡b msNwUZ wewµqvwU Avqb-B‡jKUªb
Ki| E°Zn2+/Zn = - 0.76 V| 3
c×wZ‡Z mgZvKiY Ki| 3
N. 25 °C ZvcgvÎvq DÏxc‡Ki Zwor ivmvqwbK †KvlwUi
N. DÏxc‡Ki AvKwi‡K †jvnvi kZKiv cwigvY wbY©q Zwo”PvjK ej (emf) wbY©q Ki| 4
Ki| 4 6 } (i) (CH3)3C - Cl + KOH(aq) ® ?
2} (ii) H3C - CH2 - OH H3C - CH - OH (CH3)3C - OH
(A) | (C)
100 mL CH3
100 mL (B)
0.1 M
10% H2SO4
Na2CO3 K. cvwbi BOD Gi gvb 50 mg/L ej‡Z wK eySvq? 1
`ªeY `ªeY
L. NH3 GKwU jyBm ÿviK- e¨vL¨v Ki| 2
cvÎ-A cvÎ-B
M. (ii) bs DÏxc‡Ki A, B I C †hŠM¸‡jvi g‡a¨
K. wd«-†iwWK¨vj Kx? 1 Kxfv‡e cv_©K¨ wbY©q Ki‡e? wewµqvmn eY©bv Ki| 3
L. †gvjvi `ªeY GKwU cÖgvY `ªeY- e¨vL¨v Ki| 2 N. DÏxc‡Ki (i) bs wewµqvwU c~Y© K‡i Zvi †KŠkj eY©bv
M. A cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3 Ki| 4
N. DÏxc‡Ki `ªeYØq‡K wgwkÖZ Ki‡j wgkÖ‡Yi cÖK…wZ 7}
wKiƒc n‡e? wgkÖ‡Yi pH wbY©q Ki| 4 B
PV
Abv`ª© AlCl3
3} + H3C - Cl ¾¾¾¾¾® A + HCl A

K. cÖgvY ZworØvi wefe Kx? 1

P
L. SI GK‡K R Gi gvb wbY©q Ki| 2
K. cÖvBgvix ÷¨vÛvW© c`v_© Kx? 1
M. DÏxc‡Ki wewµqvwUi A Drcv‡`i cÖwZ¯’vcK A‡_©v I
L. U‡UvgvwiRg ej‡Z Kx eySvq? D`vniY `vI| 2
c¨viv-wb‡`©kK- e¨vL¨v Ki| 3 M. B M¨v‡mi AvYweK fi 44 n‡j 27°C ZvcgvÎvq Gi
N. DÏxc‡Ki wewµqvwUi †KŠkj eY©bv Ki| 4 RMS †eM wbY©q Ki| 3
4} N. DÏxc‡Ki B M¨vmwU Kx Kx k‡Z© A M¨v‡mi g‡Zv
27 °C AvPiY Ki‡e Zv we‡kølY Ki| 4
0.4 g 0.5 g
765 mm (Hg) 103.35 kPa †jŠwnZ Zß Fe bj HNO3, Mvp H2SO4
550 mL 500 mL 8 } (i) 3HC º CH ¾¾¾¾¾¾¾® A ¾¾¾¾¾¾¾® B
500 mL 500 °C 60 °C
A-M¨vm B-M¨vm
(ii)wmjfvi bvB‡UªU `ªe‡Y 6A we`y¨r cÖevn 1 NÈv hveZ
K. RviY msL¨v Kx? 1 Pvjbv Kiv n‡jv| [Ag Gi cvigvYweK fi 108]
L. †hŠMwU A¨v‡iv‡gwUK †Kb? 2 K. wK¬‡gbmb weRviY Kx? 1
L. BOD Gi †P‡q COD Gi gvb †ewk †Kb? 2
M. ÷cKKwU Ly‡j w`‡j M¨vm wgkÖ‡Yi †gvU Pvc KZ n‡e
M. (ii) bs DÏxc‡K D‡jøwLZ †KvlwUi ZworØv‡i wK
Zv wbY©q Ki| 3
cwigvY wmjfvi Rgv n‡e? wbY©q Ki| 3
N. A I B M¨vmØ‡qi g‡a¨ †KvbwUi e¨vc‡bi nvi †ewk? N. (i) bs DÏxc‡K A I B †hŠ‡Mi g‡a¨ B‡j±ªbvKlx©
MvwYwZKfv‡e we‡kølY Ki| 4 cÖwZ¯’vcb wewµqvq †KvbwU AwaK mwµq? 4
47

ivRkvnx K‡jR welq †KvW : 1 7 7

mgq-2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Yg© vb-50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI : 5 } DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :
+ - + -
Sn
C6H5NO2 ¾¾® B
A HCl Au A¨v‡bvW †jvnvi PvgP GwmW
K. RviY wefe Kx? 1 wgwkÖZ
H2O
L. RviY msL¨v I †hvRbxi g‡a¨ cv_©K¨ Ki| 2
Zwor cÖ‡jcb
M. B †_‡K †ebwRb cÖ¯w‘ Z wewµqvmn †jL| 3 (1) (2)
N. A I B Gi B‡jKUªbvKlx© cÖwZ¯’vcb wewµqvq †KvbwU K. A¯’vqx LiZv Kx? 1
AwaK mwµq KviYmn e¨vL¨v Ki| 4 L. GwmW e„wó †iv‡a KiYxq cÖwµqv ivmvqwbK wewµqv Øviv
2} DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI : e¨vL¨v Ki| 2
B A M. (1) bs cv‡Îi cÖwµqvwU RviY weRviY wewµqv D‡jøLmn e¨vL¨v Ki| 3
(CH3)3C – OH ¬¾¾¾¾
+
RMgX ¾¾¾®
+
wg_vBj Kvwe©bj
(D) H /H 2O H /H 2O (C) N. (2) bs cv‡Î 3 amp we`y¨r 2 NÈv a‡i Pvjbv Ki‡j
K. TDS Kx? 1 KZ MÖvg cvwb we‡køwlZ n‡e wbY©q Ki| 4
L. Kvwe©j A¨vwgb wewµqv e¨vL¨v Ki| 2 6} DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :
M. C I D Gi cv_©K¨ wbY©‡qi cixÿv wewµqvmn e¨vL¨v MgCl2 AgNO3 CuSO4
0.13 M 0.04 M 0.05 M
Ki| 3 cvÎ-1 cvÎ-2 cvÎ-3
N. Dchy³ A¨vjwKb †_‡K I‡RvbxKiY wewµqvq B cÖ¯‘Z ZvcgvÎv 25 °C Ges
K‡i †`LvI †hŠMwU n¨v‡jvdig wewµqv cÖ`k©b K‡i| 4 E°Ag+/Ag = + 0.80V
3} DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI : EoMg2+/Mg = – 2.36 V
wØ-ÿvixq A¤ø GK A¤øxq ÿvi E0Cu2+Cu = + 0.34
(m¤ú~Y© we‡qvwRZ nq) (AvswkK we‡qvwRZ nq) K. cÖgvY ZworØvi wefe Kx? 1
100 cm 3
50 cm 3
L. Zwor ivmvqwbK †Kv‡l jeY †mZzi f‚wgKv e¨vL¨v Ki| 2
0.5 M 0.65 M M. 3bs cv‡Îi avZzwUi weRviY ZworØvi wefe MYbv Ki| 3
A B N. 1bs I 2bs cvÎ Øviv MwVZ †Kv‡li †Kvl wefe wbY©q
K. U‡UvgvwiRg Kx? 1 K‡i Gi ¯^Ztù‚ZZ © v e¨vL¨v Ki| 4
L. 2, 3–WvB‡eªv‡gvweDwUb – 2 R¨vwgwZK mgvYyZv cÖ`k©b 7} DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :
Ki‡e wKbv e¨vL¨v Ki| 2 Z

M. A I B Gi cÖkgb wewµqvq Dchy³ wb‡`©kK †jLwPÎ PV M

mnKv‡i wba©viY Ki| 3
N. A I B wgkÖ‡Yi cÖKw… Z wbY©q Ki| 4 P

4} DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI : K. †iwmwgK wgkÖY Kx? 1

30 mL L. g„`y A¤ø I g„`y ÿvi‡Ki UvB‡Uªk‡b †Kv‡bv Dchy³
1g †jvnvi UzKiv K2Cr2O7
0.1 M KMnO4 wb‡`©kK †bB †Kb¾ e¨vL¨v Ki| 2
+ jNy H2SO4 + H2SO4
`ªeY M. Z M¨vmwUi NbZ¡ SATP †Z 1.77 g/L n‡j Gi rms †eM KZ? 3
A-cvÎ B-cvÎ C-cvÎ N. DÏxc‡Ki Z M¨vmwUi AvPiY M M¨vmwUi AvPiY †_‡K
A-cv‡Îi `ªeY‡K c~Yi© ƒ‡c RvwiZ Ki‡Z B-cv‡Îi `ªe‡Yi wePz¨wZi KviY we‡kølY Ki| 4
m¤ú~Y© Ask cÖ‡qvRb nq| 8} DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :
K. AbyiYb Kx? 1 0.6g A M¨vm 0.7 g B M¨vm 9.98 atm
912 mm (Hg) 1.2 atm 0.3 L CO3 M¨vm
L. A¨vwj‡dwUK A¨vwg‡bi ÿviawg©Zv A¨v‡iv‡gwUK A¨vwgb
400 mL 27°C 350 mL 27°C rms †eM 412.38 ms–1
†_‡K †ewk †Kb? 2
A-cvÎ B-cvÎ C-cvÎ
M. DÏxc‡Ki C-cv‡Îi `ªe‡Y H2S M¨vm Pvjbv Kiv n‡j
K. UvB‡Uªkb Kx? 1
msNwUZ wiW· wewµqv Avqb B‡jKUªb c×wZ‡Z mgZv
L. A¨vwmwUwjb A¤øagx©¾ e¨vL¨v Ki| 2
weavb Ki| 3 M. DÏxc‡Ki C-cv‡Îi M¨vmwUi †gvU MwZkw³ wbY©q Ki| 3
N. DÏxc‡Ki A-cv‡Îi `ªe‡Y †hvM Kiv †jvnv weï× Kx N. A Ges B M¨v‡mi g‡a¨ †KvbwUi e¨vcb nvi †ewk¾
bv¾ MvwYwZKfv‡e we‡kølY Ki| 4 MvwYwZKfv‡e we‡kølY Ki| 4
48

miKvwi my›`ieb Av`k© K‡jR, Lyjbv welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } 25 °C ZvcgvÎvq 8.885 g I 2.432 g f‡ii M¨vm `yBwU c„_K M. ii. bs wewµqvi wµqv‡KŠkj we‡kølY Ki| 3
wmwjÛvi X I Y †Z i‡q‡Q| N. i. bs wewµqvi Am¤ú„³ nvB‡WªvKve©bØ‡qi DfqB
I. X-wmwjÛvi : Pvc 50 kPa, AvqZb 10 dm3 †eªvwgb `ªeY cixÿvq Ask MÖnY K‡i bv †Kb? e¨vL¨v
II. Y-wmwjÛvi : Pvc 200 kPa, AvqZb 1 dm3 Ki| 4
K. Mo gy³c_ Kx? 1 jNy NaOH
5 } i. 2A ¾¾¾¾® CH3CH(OH)CH2CHO
L. M¨v‡mi MwZkw³ wbY©‡q rms †eM AwaK Dc‡hvMx 50% NaOH
ii. 2B ¾¾¾¾¾® C6H5CH2OH + C6H5COONa
†Kb? 2 K. abvZ¥K Av‡ekxq cÖfve Kx? 1
M. 27 °C ZvcgvÎvq M¨vmØq‡K 5 dm AvqZ‡bi Aci
3
L. A¨vj‡Kvnjxq - OH g~jK wKiƒ‡c kbv³ Ki‡e wjL| 2
GKwU wmwjÛv‡i wb‡j Zvi Pvc KZ n‡e? 3 M. B †hŠMwUi B‡jKUªbvKlx© cÖwZ¯’vcb wewµqv 3-bs
N. cÖ`Ë ZvcgvÎv I Pv‡c M¨vm `yBwUi g‡a¨ †KvbwUi Ae¯’v‡b N‡U †Kb? 3
e¨vcb nvi †ewk? - MvwYwZKfv‡e we‡kølY Ki| 4 N. A I B †hŠMØ‡qi g‡a¨ †KvbwU †K›`ªvKlx© ms‡hvRb
2} wewµqvq AwaK mwµq? e¨vL¨v Ki| 4
B M¨vm
6 } `ªeY A : 40 mL HCl
1.8
Compressibility

`ªeY B : 30 mL 0.5 M Na2CO3

factor (Z)

1.0 A M¨vm `ªeY C : 25 mL 0.1 M NaOH

0.2 K. wb‡`©kK Kx? 1
0
200 600 1000 L. wgwj‡gvjvi `ªeY GKwU cÖgvY `ªeY †Kb? 2
P(atm
M. B `ªe‡Yi NbgvÎv kZKiv wnmv‡e wbY©q Ki| 3
K. cvwbi ¯’vqx LiZv Kx? 1 N. `ªeY A †K c~Y© cÖkwgZ Ki‡Z `ªeY B I C Df‡qi
L. SO2 GKwU jyBm GwmW †Kb? 2 cÖ‡qvRb n‡j, `ªeY A Gi NbgvÎv wbY©q Ki| 4
-1
M. 27 °C ZvcgvÎvq B M¨v‡mi rms †eM 412.38 ms 7 } 20 mL bgybv FeSO4 `ªeY‡K H2SO4 Gi Dcw¯’wZ‡Z
n‡j M¨vmwUi AvYweK fi KZ n‡e? 3 c„_Kfv‡e-
N. †Kvb Ae¯’vq DÏxc‡Ki B-M¨v‡mi †jLwPÎ, A- (i) 0.2 M KMnO4 `ªeY I
M¨v‡mi b¨vq n‡Z cv‡i Zv- e¨vL¨v Ki| 4 (ii) 0.2 M K2Cr2O7 `ªeY Øviv UvB‡Uªkb Kiv nj|
3} K. Av‡qv‡WvwgwZ Kx? 1
L. H2O2 RviK I weRviK Dfq wnmv‡e KvR K‡i †Kb? 2
M. DÏxc‡Ki (i) bs UvB‡Uªk‡b msNwUZ †iW·
wewµqvwU‡K Avqb B‡j±ªb c×wZ‡Z mgZv weavb
K. U‡UvgvwiRg Kx? 1 Ki| 3
L. A¨vgvBWmg~n A¤øZ¡ cÖ`k©b K‡i †Kb? 2 N. DÏxc‡Ki UvB‡Uªkb cÖwµqv `yBwU‡Z myweav I
M. DÏxc‡Ki A †hŠMwUi Av‡qv‡Wvdg© wewµqv cÖ`k©‡bi Amyweav¸‡jv we‡kølY Ki| 4
KviY wjL| 3 8 } Zn + Ni2+ (0.1 M) ® Zn2+(0.1 M) + Ni
N. DÏxc‡Ki B I C †hŠM `ywUi g‡a¨ †KvbwU R¨vwgwZK E°Zn/Zn2+ = 0.76 V Ges E°Cell = 0.51 V
mgvYyZv cÖ`k©b K‡i? - e¨vL¨v Ki| 4 K. d¨viv‡Wi Zwor we‡kølY m~ÎwU wjL| 1
Fe L. GKK ZwoØvi wef‡ei gvb wKiƒ‡c wbY©q Kiv nq? 2
4 } (i) C2H2 ¾¾¾® A
450 °C M. Kÿ ZvcgvÎvq Wvb ZworØviwUi weRviY wef‡ei gvb
Mvp H2SO4 wbY©q Ki| 3
(ii) A + HNO3 ¾¾¾¾® B + H2O
60 °C N. DÏxc‡Ki A¨v‡bvWxq avZe cv‡Î FeSO4 `ªeY‡K
K. cÖkg B‡jK‡UªvdvBj Kx? 1 msiÿ‡Yi †ÿ‡Î †Kv‡bv mgm¨v n‡e wKbv-
L. †iwmwgK wgkÖY Av‡jvK wbw®µq †Kb? 2 MvwYwZKfv‡e we‡kølY Ki| (E°Fe/Fe2+ = 0.44 V) 4
49

miKvwi nvRx gynv¤§` gnwmb K‡jR, PÆMÖvg welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} K. RviY msL¨v Kv‡K e‡j? 1
L. †dbd_¨vwjb GwmW `ªe‡Y eY©nxb wKš‘ ÿvixq `ªe‡Y
†Mvjvwc e¨vL¨v Ki| 2
K. e¨vcb Kv‡K e‡j? 1 M. DÏxc‡Ki A cv‡Îi `ªe‡Y 100 mL cvwb †hvM Ki‡j
L. HSO4- Avqb Dfagx© †Kb? e¨vL¨v Ki| 2 ppm GK‡K NbgvÎv KZ n‡e? 3
M. GKB mg‡q ÷cKK Ly‡j w`‡j M¨vmØq KZ `~i‡Z¡ N. DÏxc‡Ki (A + B) wgkÖ‡Yi cÖKw… Zi h_v_©Zv pH
wgwjZ n‡e? e¨vL¨v Ki| 3 MYbvi gva¨‡g we‡kølY Ki| 4
N. wgwkÖZ Ae¯’vq †Kvb M¨vmwU †ewk Pvc w`‡e, Zv 6 } DÏxcKwU jÿ Ki-
MvwYwZKfv‡e we‡kølY Ki| 4
2} 'A' (cÖavbwMÖb nvDR M¨vm) 0.03 M
20 mL jNy H2SO4
PV 30 mL wgwkÖZ FeSO 4
'B' (me‡P‡q nvjKv M¨vm) H2O2 KMnO4
26 `ªeY
22.346 (Av`k© M¨vm)
18 cvÎ-1 cvÎ-2 cvÎ-3
K. UvB‡Uªkb Kv‡K e‡j? 1
2.5 atm
P L. RviY I weRviY GKB mv‡_ N‡U wK? e¨vL¨v Ki| 2
[0°C-G cÖwZ †gvj M¨v‡mi PV ebvg P †jL] M. DÏxc‡Ki cvÎ-1 Ges cvÎ-2 Gi `ªveKØq‡K wgwkÖZ
K. GwmW e„wó Kv‡K e‡j? 1 Ki‡j msNwUZ wewµqv Avqb-B‡jKUªb wewbgq
L. FeCl3 †K jyBm GwmW ejv nq †Kb? e¨vL¨v Ki| 2 c×wZ‡Z mgZv weavb Ki| 3
M. DÏxc‡Ki-A M¨v‡mi rms †eM wbY©q Ki| 3 N. DÏxc‡Ki cvÎ-1 Ges cvÎ-2 Gi `ªe‡Yi mvnv‡h¨
N. DÏxcK g‡Z, Av`k© M¨v‡mi AvPiY n‡Z A I B- cvÎ-3 Gi `ªe‡Y Avqi‡bi cwigvY wbY©q Ki| 4
M¨v‡mi wePz¨wZi cÖK…wZ MvwYwZKfv‡e we‡kølY Ki| 4 7} A
O3 [O]
3 } (i) CnH2n ¾¾¾¾® 2B ¾¾® C
(n = 4) H2O/Zn
A A A2+ B3+ B
K. KvBivj Kve©b Kv‡K e‡j? 1 0.1 M 0.2 M
L. †iwmwgK wgkÖY Av‡jvK wbw®µq- e¨vL¨v Ki| 2 ['A' Ges 'B'-Gi cvigvYweK msL¨v h_vµ‡g 12 I 24 Ges
M. A †hŠ‡Mi †÷wiI mgvYyZv eY©bv Ki| 3 EA/A2+ = + 2.36 V I E°B/B3+ = + 0.74 V]
N. B I C Gi g‡a¨ †KvbwU wbDwK¬IwdwjK cÖwZ¯’vcb K. cÖgvY ZwoØvi wefe Kv‡K e‡j? 1
wewµqv w`‡e? we‡kølY Ki| 4 L. ZvcgvÎv e„w×‡Z B‡jKUªbxq cwievnxi Zwor cÖevn
RviY n«vm cvq †Kb? 2
4 } (i) wZb Kve©bwewkó †hŠM 'A' ¾¾® wZb Kve©bwewkó ˆRe
GwmW M. DÏxcK †m‡ji Zwo”PvjK ej wbY©q Ki| 3
RviY N. B3+ Avq‡bi `ªeY `¯Ívi cv‡Î msiÿY Kiv hv‡e
wZb Kve©bwewkó †hŠM 'B' ¾¾® `yB Kve©bwewkó ˆRe GwmW wKbv- MvwYwZKfv‡e we‡kølY Ki| 4
Cl2
X 8}
FeCl3 3.5 A
(ii) C6H6 HNO3
H2SO4
Y + -

500 mL
K. Wvqv‡÷wiIgvi Kv‡K e‡j? 1 1M
E°Ni2+/Ni = + 0.25 V
E°Zn2+/Zn = ¸ 0.76 V
L. B_vBb Gi Awe©Uvj wPÎ e¨vL¨v Ki| 2 Ni(NO3)2
`ªeY
M. A I B †hŠ‡Mi g‡a¨ cv_©K¨KiY wewµqv mgxKiYmn wjL| 3
N. X I Y Gi cÖwZ¯’vcK¸‡jv †Kvb ai‡bi wb‡`©kK? K. AmvgÄm¨ wewµqv Kv‡K e‡j? 1
we‡kølY Ki| 4 L. Zwor we‡kølY GKwU RviY-weRviY wewµqv e¨vL¨v Ki| 2
5 } DÏxcKwU jÿ Ki : M. DÏxc‡Ki `ªe‡Y I NÈv we`y¨r Pvjbvi ci Kx cwigvY
Ni2+ Avqb K¨v‡_v‡W mwÂZ n‡e? MYbv Ki| 3
0.25 M
20% 500 mL N. DÏxc‡Ki Zworwe‡kø‡l¨i `ªeYwU‡Z 2 NÈv we`y¨r
200 mL NaOH
H2SO4
`ªeY cÖevwnZ Ki‡j Zworwe‡kø‡l¨i `ªe‡Yi NbgvÎvi Kxiƒc
A-cvÎ B-cvÎ cwieZ©b n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
50

Rvjvjvev` K¨v›Ub‡g›U cvewjK ¯‹j

z GÛ K‡jR, wm‡jU welq †KvW : 1 7 7
mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} 5}
0.5 gm 0.61 gm
V = 0.3 L V = 0.4L
P = 760 mmHg P = 770 mm(Hg)
A gas B gas

K. †gvj Kx? 1
L. H2SO4 GKwU †m‡KÛvix ÷¨vÛvW© c`v_©- e¨vL¨v Ki| 2 K. bvB‡Uªv‡Rb wd‡·kb Kx? 1
M. ÷cKK eÜ Ae¯’vq A M¨v‡mi AYyi msL¨v wbY©q L. jeY †mZz Kx? e¨vL¨v Ki| 2
Ki| 3 M. DÏxc‡Ki wewµqvwU †h bxwZi gva¨‡g msNwUZ n‡q‡Q
N. GKB ZvcgvÎv I Pv‡c A I B M¨v‡mi †KvbwUi Zv e¨vL¨v Ki| 3
e¨vcb nvi †ewk n‡e Zv MvwYwZKfv‡e we‡kølY Ki| 4 N. DÏxc‡Ki A I B Df‡qB †÷wiImgvYyZv †`Lv‡jI
2} D³ mgvYyZvi g‡a¨ cv_©K¨ we`¨gvb-we‡kølY Ki| 4
[25° C I 1 atm Pv‡c M 6}
M
M¨v‡mi NbZ¡ 1.775 gL-1] A 4.9% 50 mL 50 ml 0.1 M
H2SO4 NaOH
PV
A B
P
K. jyKvm weKviK Kx? 1
K. Zwor ivmvqwbK †Kvl Kv‡K e‡j? 1 L. †ebwRb GKwU A¨v‡iv‡gwUK †hŠM- e¨vL¨v Ki| 2
-1
L. Ag Zwor ivmvqwbK Zzj¨vsK 0.001117 gC ej‡Z M. DÏxc‡Ki A cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K
Kx eyS? 2 iƒcvšÍi Ki| 3
M. 0 °C ZvcgvÎvq 16 g M M¨v‡mi MwZkw³ wbY©q Ki| 3 N. DÏxc‡Ki A I B cv‡Îi wgwkÖZ `ªe‡Yi cÖK…wZ Kxiƒc
N. DÏxc‡Ki M M¨vmwU †Kvb k‡Z© A M¨v‡mi Abyiƒc n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
AvPiY Ki‡e Zv we‡kølY Ki| 4 7}
3} 15 g Fe [†jvnvi UzKivwU c~Y©iƒ‡c
200 ml 0.2 M RvwiZ n‡Z B cv‡Îi
H2SO4 + K2Cr2O7 m¤ú~Y© `ªeY cÖ‡qvRb nq]
A B

K. AvB‡mv_vg© Kx? 1 K. AbyeÜx A¤ø Kv‡K e‡j? 1

L. cigk~b¨ ZvcgvÎv Kx? e¨vL¨v Ki| 2 L. A¨vjKvBb-1 A¤øagx© †Kb? e¨vL¨v Ki| 2
M. Zzwg Kxfv‡e A I B †hŠ‡Mi cv_©K¨ Ki‡e? M. DÏxc‡Ki wewµqvwU Avqb B‡jKUªb c×wZ‡Z
mgxKiYmn wjL| 3 mgZvKiY Ki| 3
N. B †_‡K X Drcv‡`i †KŠkj Av‡jvPbv Ki| 4 N. †jvnvi UzKivwU weï× wKbv? MvwYwZKfv‡e we‡kølY
4} Ki| 4
8 } (i) A/A2+; E° = + 0.75 V
(ii) B/B2+; E° = + 0.40 V
(iii) C/C2+; E° = + 0.35 V
K. Kve©vbvqb Kv‡K e‡j? 1
K. Wvë‡bi AvswkK Pvc m~ÎwU wjL| 1 L. mg‡MvÎxq †kÖwYi ˆewkó¨ wjL| 2
L. SI GK‡K R Gi gvb wbY©q Ki| 2 M. i I iii bs ZworØvi Øviv jeY‡mZzmn †Kvl ˆZwi K‡i
M. B †hŠM n‡Z C †hŠM cÖ¯w‘ Zi †KŠkj e¨vL¨v Ki| 3 †gvU †Kvl wefe wbY©q Ki| 3
N. C I D †hŠ‡Mi g‡a¨ cÖwZ¯’vcb wewµqvq †KvbwU N. iii bs `ªeY‡K A I B avZzi wbwg©Z cv‡Îi †KvbwU‡Z
AwaK mwµq Zv AbyiY‡bi gva¨‡g e¨vL¨v Ki| 4 ivLv wbivc`? we‡kølY Ki| 4
51

K¨v›Ub‡g›U cvewjK ¯‹j

z I K‡jR, iscyi welq †KvW : 1 7 7
mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} 5}
30 °C
Z M¨vm 0.3 g 103.5 kPa W M¨vm 0.2 g 110.5 kPa
250 mL 500 mL
÷cKK
K. BOD Kv‡K e‡j? 1
K. KvBivj Kve©b Kx? 1
L. †ebwRb AYy‡Z wZbwU wØ-eÜb Av‡Q-e¨vL¨v Ki| 2 L. M¨vjfvwbK †Kv‡li A¨v‡bvW FYvZ¥K n‡jI
M. ÷cKK eÜ _vKv Ae¯’vq W M¨v‡mi AvYweK fi Zworwe‡køl¨ †Kv‡li A¨v‡bvW abvZ¥K- e¨vL¨v Ki| 2
wbY©q Ki| 3 M. DÏxc‡Ki 'P' †hŠMwUi kbv³KiY wewµqvmn e¨vL¨v Ki|3
N. DÏxc‡K ÷cKK †Lvjv Ae¯’vq †gvU Pvc 20 °C N. DÏxc‡Ki 'Q' I 'R' †hŠMØ‡qi kZKiv cwigvY GKB
ZvcgvÎvi mgvb n‡e Kx? MvwYwZK we‡kølY K‡i n‡e Kx? we‡kølY Ki| 4
gZvgZ `vI| 4 6 } 1g Ask :
3 I, O
ï®‹ B_vi g„`y RviY M (5 Kve©b hy³ A¨vjwKb) ¾¾¾¾® A + B + ZnO + H2O
2} + CH3Cl + Na ¾¾¾¾® X ¾¾¾¾® Y 2H2O/Zn
Av‡qv‡Wvdg U‡jb weKviK
H2SO4 (Mvp) A® (+) ve a~mi mv`v Aat‡ÿc †`q
+ HNO3 (Mvp) ¾¾¾¾¾® Z + H2SO4
B® (+) ve ( - ) ve
K. KvBivj Kve©b Kv‡K e‡j? 1 KOH(aq)
L. 2q Ask : 3-†eªv‡gv-3-wg_vBj †n‡·b ¾¾¾¾® D + KBr
ev¯Íe M¨v‡mi Pvc Av`k© M¨v‡mi Pvc A‡cÿv Kg †Kb? 2
K. e‡qj ZvcgvÎvi msÁv `vI| 1
M. DÏxc‡K Z †hŠM Drcbœ nIqvi †KŠkj eY©bv Ki| 3
L. wd«‡WjµvdU wewµqvq Abv`ª© AlCl3 Gi f‚wgKv e¨vL¨v `vI| 2
N. B‡jK‡UªvbvKlx© cÖwZ¯’vcb wewµqvi †ÿ‡Î X I Y
M. DÏxc‡Ki 2q Ask †_‡K D †hŠM MV‡bi †KŠkj
†hŠ‡Mi mwµqZvi Zzjbv Ki| 4 e¨vL¨v Ki| 3
3} N. DÏxc‡Ki eY©bv †_‡K A I B eënvi K‡i 'M' †hŠM
+ -
5.6 A
30 min
wbY©q c×wZ we‡kølY Ki| 4
7 } i. A2+ + 2e- ® A; E° = - 0.44 V
ii. B2+ + 2e ® B; E° = - 0.25 V
iii. D2+ + 2e- ® D; E° = - 2.3 V
Cr2(SO4)3
K. jyKvm weKviK Kx? 1
ii. Zn(s)/ZnSO4(0.5 M) || HCl(0.15 M)/H2(0.6 atm), Pt L. - NO2 g~jK‡K AmwµqKvix g~jK ejv nq †Kb? 2
E°Zn2+/Zn = - 0.76 volt M. DÏxc‡Ki ii I iii bs Aa©‡Kvl eënvi K‡i MwVZ
K. GbvbwmIgvi Kv‡K e‡j? 1 c~Yv© ½ †Kv‡li †Kvl wefe wbY©q Ki| 3
L. _v‡qvwdb GKwU A¨v‡iv‡gwUK †hŠM e¨vL¨v Ki| 2 N. DÏxc‡Ki iii bs G D2+ Avq‡bi `ªeY‡K ibs Gi A
M. ii bs †KvlwUi Zwo”PvjK kw³ wbY©q Ki| 3 avZz wbwg©Z cv‡Î msiÿY Kiv hv‡e wKbv Zv
N. i bs †Kv‡li Zwor we‡kølY †k‡l `ªe‡Yi NbgvÎv KZ MvwYwZKfv‡e we‡kølY Ki| 4
n‡e? MvwYwZKfv‡e we‡kølY Ki| 4 8 } 1g Ask :
4}
0.01 M KMnO4 0.02 M Avqib (ii)
Mg `ªeY A·v‡jU `ªeY
20 mL 7.5 mL (i) (ii)
0.1 M 0.2 M A+B wØZxq Ask : A, A || H , H2/Pt
2+ +
HCl HCl
K. AcÖwZmg Kve©‡bi msÁv `vI| 1
cvÎ-A cvÎ-B cvÎ-C L. cÖgvY nvB‡Wªv‡Rb ZworØvi GKwU cÖvBgvix wb‡`©kK
K. Zworwe‡køl¨ Kv‡K e‡j? 1 ZworØvi- e¨vL¨v Ki| 2
L. cvwb‡Z BOD 5mg/L ej‡Z Kx eySvq? 2 M. DÏxc‡Ki 2q Ask eënvi K‡i bvb©‡÷i mgxKiY
M. DÏxc‡Ki cvÎ A Gi `ªeY‡K †mw›U‡gvjvi `ªe‡Y cwiYZ Kxiƒc n‡e? e¨vL¨v Ki| 3
Ki‡Z KZUzKz cvwb †hvM Ki‡Z n‡e? e¨vL¨v Ki| 3 N. DÏxc‡Ki 1g As‡ki ii bs cv‡Îi `ªe‡Yi 50 ml
N. DÏxc‡Ki C cv‡Î Mg UzKivi fi KZ? cwigvY RvwiZ Ki‡Z i bs `ªe‡Y KZ AvqZb ìKvi
MvwYwZKfv‡e we‡kølY Ki| 4 n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
52

wgR©vcyi K¨v‡WU K‡jR, Uv½vBj welq †KvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. 8 g He M¨v‡mi Rb¨ Av`k© M¨vm 10. 5 g KClO3 †_‡K STP †Z wK cwigvY 17. †KvbwU B‡jK‡UªvdvBj?
mgxKiY †KvbwU? Aw·‡Rb Drcbœ n‡e? K PH3 L H2O
K PV = nRT L PV = RT K 1.96 g L 1.31 g M BF3 N NH3
M PV = 2RT N PV = 4RT M 0.65 g N 3.04 g
18. †Kvb wewµqvq Kve©b wkKj n«vm N‡U?
2. Al Gi Zwor ivmvqwbK Zzj¨vs‡Ki gvb n wb‡Pi DÏxcK e¨envi K‡i 11 I 12
K DU©R wewµqvq
KZ? bs cÖ‡kœi DËi `vI :
L wWKve©w·‡jkb wewµqv
K 1.118 ´ 10-3 L 3.38 ´ 10-4 C2O42- + MnO4- + OH- ® MnO2
+ CO32- + H2O M DU©R wdwUM wewµqv
M 9.326 ´ 10-5 N 4.49 ´ 10-5
3. †KvbwU kw³kvjx weRviK c`v_©? 11. GB wewµqvq- N Kvwe©j A¨vwgb wewµqv
K Fe L Sn i. weRviY wewµqvq 6wU B‡jKUªb 19. †KvbwU AwaK mwµq?
M Pb N Zn hy³ nq + +
K CH3 L CH3 - CH2
n wb‡Pi wewµqvi Av‡jv‡K 4 I 5 bs ii. C2O4 RvwiZ nq
2-
+ +

iii. MnO -
weRvwiZ nq M (CH3)2CH N (CH3)3C
cÖ‡kœi DËi `vI : 4

wb‡Pi †KvbwU mwVK? 20. LiAlH4 †hŠ‡M nvB‡Wªv‡R‡bi RviY

H2PO4- + H2O ®
4. DÏxc‡Ki GwmWwUi AbyeÜx ÿviK K i I ii L i I iii gvb †KvbwU?
†KvbwU? M ii I iii N i, ii I iii K+1 L-1
K H3PO4 L H3O + 12. wewµqvwU‡Z RviK I weRviK AbycvZ M+2 N+3
M HPO4 2-
N PO43- †KvbwU? 21. K2Cr2O7 + KI + HCl ® wewµqvq
5. DÏxc‡Ki Gwm‡Wi ÿviKZ¡ KZ? K 2 : 5 L 5 : 2 Cr6+ KqwU B‡jKUªb MÖnY K‡i?
K1 L2 M 2 :3 N 3 :2
K1 L2
M3 N6 13. 10 g CaCO3 †_‡K 2 ´ 1020 wU AYy
M3 N6
6. C3H8O †hŠ‡M KqwU Ae¯’vb mgvYy mwi‡q wb‡j Aewkó CaCO3 Gi fi
22. 0.05 ppm Gi A_© wK?
m¤¢e? KZ?
K 9.550 g L 9.669 g K 0.05 mg `ªe 1 L `ªeY
K2 L3
M4 N5
M 9.881 g N 9.966 g L 0.5 g `ªeY 1 L `ªeY
7. CH3 - CH(CH3) - CH(CH3) - 14. †Kvb k‡Z© ev¯Íe M¨vm Av`k© M¨v‡mi M 0.005 g `ªe 1 L `ª eY
CH2OH; †hŠMwUi IUPAC bvg wK? gZ AvPiY Ki‡e?
N 50 mg `ªe 1 L `ªeY
K D”P ZvcgvÎv I wb¤œ Pvc
K 2, 3-WvB wg_vBj weD‡Ub-4-Aj 23. †KvbwU `ye©j Zworwe‡køl¨?
L D”P ZvcgvÎv I D”P Pvc
L 2, 3-WvB wg_vBj weDUvb-1-Aj K HNO3 L NaOH
M wb¤œ ZvcgvÎv I D”P Pvc
M 2, 3-WvB wg_vBj weDUvBj A¨vj‡Kvnj M HCl N NH4OH
N wb¤œ ZvcgvÎv I wb¤œ Pvc
N 2, 3, 3-UªvB wg_vBj †cÖvcvb -1-Aj 24. ZnSO4 `ªe‡Y 1.0 C we`y¨r cÖevwnZ
15. A¨vwm‡Uv‡d‡bv‡bi ms‡KZ †KvbwU?
8. †Kvb MÖæcwU †gUv wb‡`©kK? Ki‡j A¨v‡bv‡W wK cwigvY Zn
K C H COCH L C H COCO 6 5 3 6 5 3
K - NHCH3 L - SO3H `ªexf‚Z n‡e?
M C6H5OCH3 N CH3COOH
M - OCH3 N - CH3
16. jyBm GwmW n‡jv- K 32.7 g L 34.7 g
9. A¨v‡iv‡gwUK †hŠM¸‡jv- i. Am¤ú~Y© AóK †hŠM M 0.000338 g N 0.0000338 g
i. mvB‡K¬v‡cÖv‡cb
ii. Am¤ú~Y© d AiweUvjhy³ †K›`ªxq 25. emf †Kv‡li †Kvl wefe wbY©‡qi
ii. wdDivb cigvYy mgxKiY †KvbwU?
iii. _v‡qvwdb iii. avZe Avqb RwUj †hŠM MVb K‡i K Ecell = Eanode(ox) - Ecathode(ox)
wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK? L Ecell = Ecathode(ox) - Eanode(ox)
K i I ii L i I iii K i I ii L i I iii M Ecell = Eanode(red) - Ecathode(red)
M ii I iii N i, ii I iii M ii I iii N i, ii I iii N Ecell = Eanode(ox) + Ecathode(ox)
53

gqgbwmsn Mvj©m K¨v‡WU K‡jR welq †KvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. 100 °C ZvcgvÎv I 1.0526 atm Pv‡c 10. †KvbwU †ebwRb †_‡K Kg mwµq? 18. Av`k© M¨v‡mi AvPiY †_‡K wePz¨wZ
SO2 M¨v‡mi NbZ¡ KZ? K C6H5Cl L C6H5OH N‡U-
K 0.81 g L-1 L 2.20 g L-1 M C6H5NH2 N C6H5NO2 K D”P ZvcgvÎvq
-1
M 1.89 g L N 25 g L-1 11. SATP †Z GKwU M¨v‡mi NbZ¡ 1.25 g L-1 L wb¤œ Pv‡c
2. Mg/Mg || Cu /Cu †KvlwUi emf
2+ 2+
n‡j M¨vmwUi fi- M D”P Pvc I wb¤œ ZvcgvÎvq
gvb 0.57 V| E°Cu/Cu2+ = - 0.34 V K 1 kg L 2 kg N wb¤œ ZvcgvÎvq
n‡j E°Mg/Mg2+ = ? M 31 g N 41 g 19. †ebwRb I nvB‡Wªv‡R‡bi wewµqvq
K + 0.23 V L - 0.23 V 12. Kve©vbvBj g~j‡K Kve©b cigvYy‡Z †Kvb wb‡Kj cÖfve‡Ki Dcw¯’wZ‡Z †KvbwU
M + 0.25 V N - 0.25 V msKiY N‡U? Drcbœ nq?
3. Pvj©‡mi m~‡Îi †jLwPÎ- K sp2 L sp3d K †n‡·b L mvB‡K¬v‡n‡·b
K AvB‡mv_vg© L AvB‡mvevi M sp N sp3 M M¨vgvw·b N †nw·b
M AvB‡mv‡Uvb N AvB‡mv‡Uvc 13. †gvjvi M¨vm aªæeK R = 8.314 JK-1 n wb‡Pi Z‡_¨i Av‡jv‡K 20 I 21 bs
4. †KvbwUi e¨vcb nvi me‡P‡q †ewk? mol-1 wbY©‡q cÖ‡qvRb- cÖ‡kœi DËi `vI :
K NH3 L CO2
i. AvqZb wjUv‡i M/M2+ | N+/N; E°M/M2+ = 0.76 V,
M NO2 N CH4
ii. Pvc Nm-2 GK‡K E°N/N+ = - 0.46 V
5. 32.75 gm Zn†K K¨v‡_v‡W mwÂZ
iii. ZvcgvÎv †Kjwfb GK‡K 20. †KvlwUi emf gvb KZ?
Ki‡Z wK cwigvY ˆe`y¨wZK PvR©
K - 1.16 V L - 0.36 V
cÖ‡qvRb? wb‡Pi †KvbwU mwVK?
M + 0.36 V N + 1.22 V
K 1F L 2F K i I ii L ii I iii
M 3F N 4F
21. †KvlwU‡Z M avZz-
M i I iii N i, ii I iii
6. nvB‡Wªv‡R‡bi cÖgvY ZworØvi wef‡ei i. RvwiZ nq
14. wb‡Pi †Kvb mgxKiYwU e‡q‡ji m~‡Îi ii. A¨v‡bvW wn‡m‡e KvR K‡i
gvb KZ?
Abywm×všÍ? iii. N A‡cÿv mwµq
K - 1.34 V L 0.0V
K P1V1 = P2V2 L P1/P2 = d1/d2 wb‡Pi †KvbwU mwVK?
M + 0.74 V N + 1.0 V
M P1/V1 = P2/V2 N PV = K K i I ii L i I iii
7. STP †Z 0.01 M CO2 M¨v‡mi AvqZb
KZ? 15. wb‡Pi wewµqvwU‡Z †KvbwU weRviK? M ii I iii N i, ii I iii
K 22.4 L L 24.4 L SnCl2 + 2HgCl2 ® SnCl4 + 2HgCl 22. 1 ppm = ?
2+ 2+
M 20.4 L N 0.224 L K Sn L Hg K 1 mg/L L 1 mg/mL
M Cl- N Sn4+ M 1 mg/L N 100 mg/L
n wb‡Pi wewµqvi Av‡jv‡K 8 I 9 bs
cÖ‡kœi DËi `vI : 16. wb‡Pi †Kvb ai‡bi †hŠM R¨vwgwZK 23. Zwor we‡kølY cÖwµqvq †KvbwU Av‡M
[O] mgvYyZv cÖ`k©b K‡i bv? PvR©g³ y n‡e?
CH 3CH 2(OH)R ¾¾® CH 3 - CO - R(A) K Br -
L NO3-
D K PvwµK A¨vj‡Kb
-
[O] L wØ-eÜb hy³ M OH N Cl-
¾¾® R - COOH (B) + CO2 + H2O
D 24. †Kvb wewµqvq 5 B‡jKUªb MÖnY
M wÎ-eÜb hy³
8. hw` - R = - H nq Z‡e A †hŠMwU- n‡q‡Q?
N PvwµK †hŠM
i. 2, 4-DNP Gi mv‡_ wewµqv K‡i K Cr2O72- ® 2Cr3+
ii. U‡jb weKvi‡Ki mv‡_ wewµqv K‡i n wb‡Pi wewµqvi Av‡jv‡K 17 I 18 bs L MnO4- ® Mn2+
iii. †K›`ªvKlx© wewµqv †`q cÖ‡kœi DËi `vI : M Cr2O42- ® CO2
wb‡Pi †KvbwU mwVK? 3+ 2+ 2+
2Fe (aq) + Sn (aq) F 2Fe (aq) + Sn (aq) 4+
N I2 ® I-
K i I ii L i I iii 17. wb‡Pi †KvbwU mwVK bvb©÷ mgxKiY- 25. C - C welg fvO‡bi d‡j Drcbœ
M ii I iii N i, ii I iii RT [Fe2+]2[Sn4+] †hŠM-
K E = E° - ´ 2.303 log 3+ 2 2+
9. B †hŠMwU Zn.Hg + HCl Gi mv‡_ 2F [Fe ] [Sn ] i. Kv‡e©vwbqvg Avqb
3+ 2 2+
wewµqv Ki‡j Drcbœ Drcv` †KvbwU RT [Fe ] [Sn ] ii. Kve©vbvqb
L E = E° - ´ 2.303 log 2+ 2 4+
2F [Fe ] [Sn ]
n‡e? iii. gy³ g~jK
RT [Fe2+]2[Sn2+]
K A¨vj‡Kvnj M E = E° - ´ 2.303 log wb‡Pi †KvbwU mwVK?
F [Fe3+]2.[Sn4+]
L A¨vjKvBj n¨vjvBW RT 3+ 2
[Fe ] [Sn ] 2+ K i I ii L ii I iii
N E = E° - ´ 2.303 log 2+ 2 4+
M A¨vj‡Kb N A¨vjwKb F [Fe ] .[Sn ] M i I iii N i, ii I iii
54

wSbvB`n K¨v‡WU K‡jR welq †KvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. wb‡Pi †KvbwU A¨vwj‡dwUK †hŠM? 9. wb‡Pi †KvbwU cÖvBgvwi ÷¨vÛvW© c`v_©? 17. †Kvb ZvcgvÎvq Av`k© M¨vm e‡q‡ji
K B_vBj A¨vwgb K H2C2O4 L NaOH m~Î‡K AbymiY K‡i?
L wdbvBj A¨vwgb M KMnO4 N HCl K 0°C
M †eb‡RvwqK GwmW 10. [CO(NH3]Cl3 †hŠ‡Mi †K›`ªxq cigvYyi L wb¤œ ZvcgvÎvq
N †dbj RviY msL¨v KZ? M 25°C (ZvcgvÎvi)
2. wb‡Pi †KvbwU A¨vgvBW MÖæc? K0 L3 N D”P ZvcgvÎvq
K > CO L – CHO M –3 N6 18. wb‡Pi †Kvb M¨v‡mi ms‡KvPbkxjZv
M – CONH2 N –NH2 n wb‡Pi DÏxcKwU co Ges 11 I 12 bs ¸Yv‡¼i gvb Z > 1?
3. wb‡Pi †KvbwU wbDwK¬IdvBj wn‡m‡e KvR cÖ‡kœi DËi `vI : K He L N2
K‡i? Na2S2O3 + 13 = Na2S4O6 + Nal M Cl2 N NH3
K BF3 L CN 11. DÏxc‡Ki wewµqvq ÔS’ Gi RviY gvb KZ 19. wb‡Pi †KvbwU kw³kvjx GwmW?
M FeCl3 N H3O+
†e‡o‡Q? K HNO2 L HNO3
n wb‡Pi DÏxcKwU co Ges 4 I 5 bs K–1 L +0.5 M H3PO3 N H3PO4
cÖ‡kœi DËi `vI : M2 N 2.5 20. MÖvnv‡gi m~‡Îi MvwYwZK ivwkgvjv †KvbwU?
H2O
wMÖMbvW© weKviK + HCHO –––––® A 12. DÏxc‡Ki wewµqvq- K r1 M2 = r 2 M1
D
i. l2 RviK
4. DÏxc‡Ki A †hŠMwU n‡jv- L r1 d2 = r2 M1
ii. l2 weRviK
K wK‡Uvb M r2 d2 = r1 d1
iii. l2 weRvwiZ n‡q‡Q
L cÖvBgvwi A¨vj‡Kvnj N r 1 M1 = r 2 M2
M †m‡KÛvwi A¨vj‡Kvnj
wb‡Pi †KvbwU mwVK?
21. wb‡Pi †Kvb ZvcgvÎv‡K cigk~b¨ ZvcgvÎv
N B_vb¨vj K i I ii L ii I iii
ejv nq?
5. hw` DÏxc‡Ki weKvi‡Ki mv‡_ CO2 M i I iii N i, ii I iii
K 0°C L 100°C
wewµqv K‡i Z‡e Drcbœ †hŠM- 13. wb‡Pi †KvbwU †Wwm‡gvjvi `ªeY?
M 273°C N –273°C
i. GwmW K 0.5 M L 0.01 M
22. wb‡Pi †KvbwU ï®‹ †Kv‡l A¨v‡bvW wn‡m‡e
ii. A †hŠ‡Mi mv‡_ wewµqv Ki‡Z cvi‡e M 1M N 0.1 M
e¨en„Z nq?
iii. H †hŠM n‡Z A †hŠM cÖ¯‘Z Kiv hv‡e 14. wb‡Pi †KvbwU jyBm GwmW?
K NH4Cl L MnO2
wb‡Pi †KvbwU mwVK? K NH3 L AlCl4-
M Zn N C- `Ð
K i I ii L ii I iii M BCl3 N BCl4-
23. wb‡Pi †KvbwU avZz-avZz ZworØvi?
M i I iii N i, ii I iii 15. 10% Na2CO3 `ªeY A_©vr
K Pt(s)/Fe2+(aq), Fe3+(aq)
6. wb‡Pi †KvbwU Kv‡e©vwbqvg Avq‡bi i. 100 mL G 10 g Na2CO3 _v‡K
L Ag(s)/AgNO3(aq)
¯’vwq‡Z¡i mwVK µg? ii. 100 mL cvwb‡Z 10 g Na2CO3
M Ag(s), AgCl(s)/NaCl(aq)
K C+R3 > C+ HR2 > C+H2R Dcw¯’Z N Hg(1), Hg2Cl2(s)/KCl
L C+R3 > C+ H2R > C+HR2
iii. 100 mL `ªe‡Y 10 g Na2CO3 _v‡K 24. 1F cwigvY we`y¨r cÖev‡n wK cwigvY Kcvi
M C+H3 > C+ HR2 > C+H2R
wb‡Pi †KvbwU mwVK? avZz mwÂZ n‡e?
N C+H3 > C+ R3 > C+H2R
K i I ii L ii I iii K 63.5 L 31.75
7. C3H6O †hŠM †_‡K KqwU mgvYy m¤¢e?
M i I iii N i, ii I iii M 15.87 N8
K2 L3
M4 N5 16. 30 °C ZvcgvÎvq bvB‡Uªv‡Rb M¨v‡mi 25. wb‡Pi †Kvb avZzi ivmvqwbK Zzj¨v‡¼i gvb
8. 1 ppm mgvb- RMS †eM KZ? me‡P‡q †ewk?
–1 –1
K 1 mg/L L 1 g/L K 350 ms L 416 ms K Mn L Fe
–1 –1
M 1 mg/mL N 1 mg/L M 516 ms N 650 ms M Ag N Cu
55

iscyi K¨v‡WU K‡jR welq †KvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. wb‡Pi †KvbwU jyBm GwmW? 9. A·vwjK Gwm‡Wi ÿviKZ¡ KZ? 17. 500 mA we`y¨r 40 wgwbU a‡i cÖevwnZ
K NH3 L R - NH2 K1 L2 Ki‡j K¨v‡_v‡W wK cwigvY Kcvi
M PH3 N BF3 M3 N4
mwÂZ n‡e?
2. 27 °C ZvcgvÎvq Aw·‡Rb M¨v‡mi 10. C4H8O †hŠ‡M KqwU AvB‡mvgvi m¤¢e? K 0.29 g L 0.39 g
K2 L3
RMS †eM KZ? M 0.49 g N 0.59 g
M4 N5
K 48.597 ms-1 18. Pt, H2/H+ Gi mv‡_ wb‡Pi †KvbwU
11. wdDivb †hŠ‡M KZwU mÂviYkxj cvB
L 483.56 ms-1 K¨v‡_vW wn‡m‡e AvPiY Ki‡e?
M 4859.7 ms -1 (p) B‡jKUªb we`¨gvb?
K Au3+/Au
K2 L4
N 4855.7 ms-1 L Mg2+/Mg
M6 N8
3. WHO Gi g‡Z Av‡m©wb‡Ki mnbkxj M Sn2+/Sn
12. †KvbwU mylg PvwµK †hŠM?
gvÎv KZ ppm? N Al3+/Al
K b¨vc_¨vwjb
K 0.05 L 0.01 19. †Kvb AvqbwU Av‡M PvR©gy³ n‡e?
L wdDivb
M 0.005 N 0.001 K Cu2+ L H+
M cvBwiwWb M Au 3+
N Ag+
4. 3.2 g M¨v‡mi STP †Z AvqZb 2.24 L
N _v‡qvwdb 20. Fe3O4 †hŠ‡M Fe Gi RviY gvb KZ?
n‡j M¨vmwU n‡e-
H+ K+2 L + 2.5
K CO L CO2 13. RMgX + CO2 ® A ¾¾® B;
H2O
M + 2.67 N+3
M N2 N O2 B †hŠMwU n‡e?
21. 5 g FeSO4 †K RvwiZ Ki‡Z wK
5. NH3 M¨v‡mi e¨vcb nvi CO2 M¨vm K cÖvBgvwi A¨vj‡Kvnj
cwigvY KMnO4 cÖ‡qvRb n‡e?
A‡cÿv KZ ¸Y? L wK‡Uvb
K 1.04 L 2.04
K 0.386 L 0.621 M A¨vjwWnvBW
M 4.002 N 4.01
M 1.609 N 2.588
N ˆRe GwmW 22. wb‡Pi †KvbwU RviK I weRviK DfqB
6. cÖvBgvix A¨vwgb kbv³Ki‡Y †Kvb
14. wb‡Pi †Kvb †hŠMwU Av‡jvK mwµq
wn‡m‡e KvR K‡i?
wgkÖYwU e¨envi Kiv nq? wKš‘ ci¯úi `c©Y cÖwZwe¤^ bq? K FeSO4 L KI
K CHCl3 + KOH L Br2 + KOH
K Wvqv‡÷vwiIgvi M H2 N H2O2
M Cu(OH)2 + NaOH
L †g‡mv †hŠM 23. †KvbwU RviY Aa©-wewµqv wb‡`©k K‡i?
N KMnO4 + KOH
M †iwmwgK wgkÖY K Zn2+/Zn
7. ndg¨vb ÿz`vª skKiY wewµqvq †KvbwU
N GbvbwmIgvi L Zn/Zn2+
Drcbœ nq?
15. wb‡Pi †KvbwU n¨v‡jvdig wewµqv M Cu2+/Cu
K A¨vwmUvgvBW
AbymiY K‡i bv? N H+/H2, Pt
L cÖvBgvwi A¨vwgb
K weDUvbj-2 L wg_vbj 24. 0.05 M H2SO4 Gi NbgvÎv ppm
M †m‡KÛvwi A¨vwgb
M †c›Uv‡bvb-2 N †cÖvcvbj-2 GK‡K KZ?
N Kve©w·wjK GwmW K 4500 L 4900
16. wb‡Pi wewµqvq KqwU B‡jKUªb
8. wb‡Pi †Kvb M¨vm `ywUi e¨vcb nvi M 14500 N 14900
¯’vbvšÍi N‡U?
mgvb? 2Na2S2O3 + I2 ® Na2S4O6 + 2NaI
25. wb‡Pi †KvbwU kw³kvjx weRviK?
K CO2, NO2 L CO2, N2O K2 L3 K Li L Na
M CO2, CO N N2O, NO2 M4 N6 MK N Ag
56

bUi †Wg K‡jR, XvKv welq †KvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]
1. wb‡Pi †KvbwU wbDwK¬IdvBj? 10. 'C' †hŠ‡Mi †ÿ‡Î- 19. CuSO4 + KI ® Drcv`; GB wewµqvq-
K AlCl3, Cl- L NO3-, CO2 i. U‡jb weKvi‡Ki mv‡_ wewµqv K‡i i. CuSO4 RviK
M CH3MgI, H2O N CH2+, NH3
ii. NaHCO3 Gi mv‡_ wewµqv K‡i ii. I- Gi RviY msL¨v n« vm cvq
2. †KvbwU RviY-weRviY wewµqv? iii. mgZvKi‡Yi †gvj msL¨v h_vµ‡g 2, 4
K Fe + H2SO4 = FeSO4 + H2 iii. B_vbwqK GwmW n‡Z †ewk A¤øxq
L Na2SO4 + Ba(NO3)2 ® NaNO3 + BaSO4 wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK?
M SiCl4 + 4H2O = Si(OH)4 + 4HCl K i I ii L ii I iii K i I ii L ii I iii
N KOH + H2CO3 ® K2CO3 + H2O M i I iii N i, ii I iii M i I iii N i, ii I iii
3. Kÿ ZvcgvÎvq I 700 kPa Pv‡c 2.5 11. 2H2O2(aq) = 2H2O(l) + O2(g); GB 20. †Kvb M¨v‡mi eM©gj ~ Mo eM©‡eM-
dm3 M¨v‡mi AYyi msL¨v KZ? wewµqvq 64g O2 ˆZwi‡Z KZ MÖvg i. M¨v‡mi cÖK…wZi Dci wbf©ikxj
K 2.1 ´ 1022 L 8.5 ´ 1022 wewµqK cÖ‡qvRb? ii. †Kjwfb ZvcgvÎvi eM©g‡~ ji mgvbycvwZK
23
M 4.25 ´ 10 N 425 ´ 1023 K 236 L 136 M 68 N 34 iii. †mw›Uª‡MÖW ZvcgvÎvi eM©g‡~ ji mgvbycvwZK
4. E°Cu/Cu2+ = -0.34 V Ges E°Fe/Fe2+ = 12. SATP †Z †Kvb M¨v‡mi NbZ¡ 2.97 g/L wb‡Pi †KvbwU mwVK?
+ 0.44 V n‡j- n‡j D³ M¨v‡mi NbZ¡ STP †Z KZ? K i I ii L ii I iii
i. E°cell = + 0.78 V K 2.4 L 2.7 M 2.9 N 3.3 M i I iii N i, ii I iii
ii. Cu Gi cv‡Î FeSO4 `ªeY ivLv hv‡e 13. †KvbwU mwVK? 21. †KvbwU mwVK bq?
iii. Cu Øviv RviY-weRviY Aa©‡Kvl
K Ag Øviv Mg cÖwZ¯’vcb m¤¢e K avZe cwievnxi †ÿ‡Î In‡gi m~Î cÖ‡hvR¨
ˆZwi m¤¢e bq L Zxeª Zworwe‡kø‡l¨i NbgvÎv e„w× L wPwb we`y¨r Acwievnx
wb‡Pi †KvbwU mwVK?
Ki‡j cwievwnZv n«vm cvq M DËß Ae¯’vq Zworwe‡køl¨ c`v‡_©i
K i I ii L ii I iii
M Fe Øviv Ni avZzi B‡jK‡Uªv‡cøwUs m¤¢e cwievwnZv n«vm cvq
M i I iii N i, ii I iii
N Ecell < 0 n‡j †Kvl wewµqv ¯^Ztù‚Z© n‡e N Zworwe‡køl¨ cwievnxi †ÿ‡Î
5. Kvwe©j A¨vwgb wewµqvi mvnv‡h¨ mbv³
14. CH3COCHCOOH †hŠMwUi IUPAC d¨viv‡Wi m~Î cÖ‡hvR¨
Kiv nq- |
CH3 22. A¨vwg‡bi ÿvi a‡g©i ZxeªZvi †Kvb
i. 1°-A¨vwgb
bvg Kx? µgwU mwVK?
ii. †K¬v‡ivdg©
K 3-Oxo-2-methylbutanoic acid K 3° > 2° > 1° > NH3
iii. 2°-A¨vwgb
L 2-methyl-butanoic acid L 2° > 1° > NH3 > 3°
wb‡Pi †KvbwU mwVK? M 3° > 1° > NH3 > 2°
K i I ii L ii I iii M 2-methyl-3-ketobutanoic acid
N 2-methyl-3-Oxobutanoic acid N 2° > 1° > 3° > NH3
M i I iii N i, ii I iii
6. Na2S2O3 + I2 = Na2S4O4 + 2NaI
15. wb‡Pi †Kvb AvqbwU RviK I weRviK 23. Z_¨¸‡jv jÿ¨ Ki-
Dfq wn‡m‡e KvR K‡i? i. AlCl3 n‡jv jyBm ÿviK
wewµqvwU‡Z KZ †gvj B‡jKUªb
K Mn 2+
L Sn 2+ ii. HCl n‡jv Avi‡nwbqvm A¤ø
Av`vb-cÖ`vb N‡U? -
K6 L5 M4 N2 M Fe 3+
N Cu 2+
iii. HS A¨v‡çv‡cÖvwUK
7. †Kvb M¨vmwUi 12 g bgybvi AvqZb 30 °C 16. jeY †mZz- wb‡Pi †KvbwU mwVK?
ZvcgvÎvq I 1 atm Pv‡c 6.78 L n‡e? i. MV‡b Zzjv/Agar-Agar Aa©‡f`¨ K i I ii L ii I iii
K N2 L O2 M CO2 N NH3 wSjøxi KvR K‡i M i I iii N i, ii I iii
8. d¨viv‡Wi m~‡Îi cÖ‡qvM- ii. Dfq Zi‡ji ms‡hvM wefe `~i K‡i 24. †Kvb ev¯Í e M¨v‡mi †ÿ‡Î Z < 1 n‡j-
i. ZworØv‡i mwÂZ c`v‡_©i cwigvY wbY©q iii. †Kv‡li RviY-weRviY wbqš¿Y K‡i i. FYvZ¥K wePz¨wZ †`Lv hvq
ii. B‡jKUª‡bi fi MYbv wb‡Pi †KvbwU mwVK? ii. Av`k© M¨vm A‡cÿv Kg †clY‡hvM¨
iii. Zworwe‡kø‡l¨i NbgvÎv wbY©q K i I ii L ii I iii iii. M¨vmwU ZijxKiY mnR nq
wb‡Pi †KvbwU mwVK? M i I iii N i, ii I iii wb‡Pi †KvbwU mwVK?
K i I ii L ii I iii K i I ii L ii I iii
17. †KvbwU mwVK?
M i I iii N i, ii I iii M i I iii N i, ii I iii
K P vs V AvB‡mvevi
n DÏxcKwU co Ges 9 I 10bs cÖ‡kœi 25. 500 mL 0.05M H2SO4 `ªe‡Yi †ÿ‡Î
L V vs T AvB‡mv_vg©
DËi `vI : †KvbwU mwVK?
M P vs T AvB‡mv‡Kvi
[O] [O] i. NbgvÎv 4900 ppm
A (ÿz`Zª g A¨vj‡Kvnj) ¾® B ¾® C 1
g„`y N V vs AvB‡mvevi ii. cÖkwgZ Ki‡Z 500mL 0.1M
P
9. cvwb‡Z A †hŠ‡Mi `ªve¨Zvi †ÿ‡Î 18. wb‡Pi †Kvb †RvowU n¨v‡jvdig wewµqv w`‡e? NaOH cÖ‡qvRb
†KvbwU mwVK bq? K CH3CHO, CH3CH2CHO iii. 2.45g `ªe¨ we`¨gvb
K B †_‡K †ewk L C †_‡K Kg L CH3CH2OH,CH3COCH3 wb‡Pi †KvbwU mwVK?
M H2O Gi mv‡_ H-bond ˆZwi K‡i M HCHO, C6H5CHO K i I ii L ii I iii
N B_vi †_‡K Kg N CH3COCH3, CH3CH2COCH2CH3 M i I iii N i, ii I iii
57

wfKviæbwbmv b~b K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]
142 g †K¬vwib 7. NaOH I HCl Gi UvB‡Uªk‡b Dchy³ 16. 1% NaOH `ªe‡Yi NbgvÎv KZ ppm?
1. 84 g bvB‡Uªv‡Rb
wgkÖ‡Yi †gvU Pvc 1.5 atm. wb‡`©kK †KvbwU? K 0.04 ´ 104 L 1.0 ´ 104
4
K †dbjd&‡_wjb L wg_vBj A‡iÄ M 4 ´ 10 N 40 ´ 104
wgkÖ‡Y †K¬vwib I bvB‡Uªv‡R‡bi M wg_vBj †iW N me¸‡jvB
17. mwµqZvi mwVK µg †Kvb&wU?
+ +
AvswkK Pvc KZ? K R3C+ > R2CH+ > RCH2 > CH3
n DÏxcK n‡Z 8 I 9bs cÖ‡kœi DËi `vI : +
L RCH2 > R2CH+ > R3C+ > CH3
+
K 0.9 Ges 0.6 atm
K2Cr2O7 + +
M CH3 > RCH2 > R2CH+ > R3C+
L 0.6 Ges 0.9 atm CH3CH2-OH ¾¾¾¾¾® A + +
+H2SO4Conc. N R2CH+ > R3C+ > RCH 2 > CH3
M 0.5 Ges 1 atm
HCN H2O/H+ n DÏxcKwU c‡o 18 I 19bs cÖ‡kœi
N 1 Ges 0.5 atm ¾¾® B ¾¾¾® C
DËi `vI :
n DÏxcK n‡Z 2, 3 I 4bs cÖ‡kœi DËi `vI : 8. B †hŠM †Kvb&wU? K2Cr2O7 + H2SO4 + H2C2O4
CCl4 K CH3CH2CN L CH3CN 50ml 0.15 M 0.22M
A + O3 ¾¾¾® B
M CH3-CH(OH)CN ® K2SO4 + Cr2(SO4)3
H2O N CH3CONH2 + H2O + CO2
¾¾¾® B_vb¨vj + †cÖvcv‡bvb
Zn dust 9. DÏxcK Abymv‡i- 18. DÏxcK wewµqv m¤ú~Y© cÖkwgZ n‡Z KZ
2. A †hŠ‡Mi bvg Kx? i. C †hŠMwU `y‡ai GKwU ¸iæZ¡c~Y© Dcv`vb| AvqZ‡bi H2C2O4 `ªeY cÖ‡qvRb?
K 2 wg_vBj †cw›Ub-2 K 102.27 ml L 109.32 ml
ii. C †hŠMwU Av‡jvK mgvYyZv cÖ`k©b K‡i|
L †cw›Ub-2 M 115.41 ml N 121.53 ml
iii. A †hŠMwU weRviK wnmv‡e KvR
M 2-wg_vBj weDwUb-2
Ki‡Z cv‡i 19. DÏxcK n‡Z-
N †cw›Ub-3 i. wewµqvwU‡Z C2O42- AvqbwU
wb‡Pi †KvbwU mwVK?
3. Dfq Drcv` n‡Z †Kvb wewµqvi weRviK wnmv‡e wµqv K‡i
K i I ii L i I iii
mvnv‡h¨ A¨vj‡Kb cÖ¯Z‘ Kiv hvq? ii. RviK I weRviK DfqB cÖvBgvix
M ii I iii N i, ii I iii ÷¨vÛvW© c`v_©
K K¨vwbRv‡iv wewµqv
10. 4.9% H2 SO4 `ªe‡Yi pH Gi gvb KZ? iii. wewµqvwU‡Z 12 mol B‡jKUª‡bi
L A¨vjWj wewµqv
K 0 L 0.3 M 0.5 N 1 Av`vb-cÖ`vb N‡U|
M AcmviY wewµqv Br2 + KOH
11. CH3CONH2 ¾¾¾¾¾® wb‡Pi †KvbwU mwVK?
N wK¬‡gb‡mb weRviY
D K i I ii L i I iii
4. DÏxcK Abymv‡i- CH3NH2 + K2CO3 + KBr + H2O M ii I iii N i, ii I iii
i. Dfq Drcv`B DNP Gi mv‡_ wewµqvwUi bvg Kx? 20. †Kvb&w& U RxevYybvkK wnmv‡e KvR K‡i?
wewµqvq njy` Aat‡ÿc †`q K ndg¨vb ÿz`ªvskKiY K M¨vgvw·b L TNT
ii. Dfq Drcv‡`i Rvi‡Y B_vbwqK L DBwjqvgmb ms‡kølY M TNB N UªvBbvB‡Uªv wMømvwib
GwmW Drcbœ nq M Kvwe©j A¨vwgb wewµqv 21. GKwU wmwjÛv‡i 10 atm Pv‡c 50 L M¨vm
iii. Dfq Drcv` wMÖMbvW© weKvi‡Ki N AcmviY wewµqv Av‡Q| 2 atm Pv‡c 2L AvqZbwewkó
mv‡_ wewµqv K‡i 2° A¨vj‡Kvnj 12. †Kvb&wUi ms‡KvPbkxjZv ¸Yvs‡Ki gvb KZwU †ejyb D³ M¨vm Øviv c~Y© Kiv hv‡e?
ˆZwi K‡i 1 Gi me †_‡K wbKUeZx©? K 25wU L 50wU
wb‡Pi †KvbwU mwVK? M 100wU N 125wU
K A¨v‡gvwbqvg L wnwjqvg
K i I ii L i I iii 22. cvB‡ivwjMwbqvm Gwm‡W B_vbwqK
M nvB‡Wªv‡Rb N wg‡_b
M ii I iii N i, ii I iii
Gwm‡Wi kZKiv cwigvY KZ?
13. †Kvb&wU RviK I weRviK Dfq wnmv‡e K 4-6% L 6-10%
5. ˆewk¦K ZvcgvÎv e„w×‡Z CO2 M¨v‡mi wµqv Ki‡Z cv‡i? M 8-10% N 40%
f‚wgKv KZ? K LiAlH4 L H2O2 23. i) M/M2+ || N2+/N; E0cell = + 1.68V
K 28% L 38% M [Ag(NH3) 2]OH N SnCl4 ii) M/M2+ || H+/H2 , Pt;E0 cell = + 1.26V
M 50% N 62% 14. †Kvb&wU A¨vjWj Nbxfeb wewµqv N/N2+ Gi E0 Gi gvb KZ?
6. mwµqZvi mwVK µg †KvbwU? cÖ`k©b K‡i bv? K + 1.47 V L + 1.42 V
K CH3COOH > ClCH2COOH > M + 0.2032 V N - 0.42 V
K C6H5-CHO L CH3CHO
Cl2CHCOOH > Cl3C-COOH 24. †KvbwU GwmW wnmv‡e KvR K‡i?
M CH3-CO-CH3
L Cl3C-COOH > Cl2CH-COOH > K FeCl3 L PCl3
ClCH2COOH > CH3COOH N CH3-CO-CH2-CH3 M NCl3 N CHCl3
M CH3COOH > ClCH2COOH > 15. †ebwRb AYy‡Z Kve©b-Kve©b eÜb ˆ`N©¨ 25. FeSO4 `ªe‡Y 4F
we`y¨r PvR© cÖevwnZ Ki‡j
Cl3-COOH > Cl2CHCOOH KZ? K¨v‡_v‡W wK cwigvY avZz Rgv n‡e?
N Cl2CH-COOH > Cl3C-COOH K 0.154nm L 0.139nm K 224g L 168g
> CH3COOH > ClCH2COOH M 0.134nm N 0.120nm M 112g N 56g
58

AvBwWqvj ¯‹j
z A¨vÛ K‡jR, gwZwSj, XvKv welq ˆKvW : 1 7 7
mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]

1. ( P+
0.09 a
V2 ) (V - 0.3b) = 0.3 RT
9. 55°C ZvcgvÎvq wb‡Pi †Kv‡li emf 18. wRsK †UUªv_v‡qv‡bU †hŠ‡M †K›`ªxq
KZ volt? E° for Zn = 0.758 Volt, cigvYyi RviY msL¨v KZ?
mgxKiY KZ MÖvg O2 Gi Rb¨ cÖ‡hvR¨ Zn/ZnCl2 (0.09 M) K+2 L + 2.5
K 0.758 L 0.778 M + 3.5 N + 10
n‡e? M 0.792 N 0.852
K 2.88 L 9.6
10. wb‡Pi †KvbwU M¨vjfvwbK †mj- 19. SN2 wewµqvq-
M 28.8 N 96 i. A¨vj‡Kvnj Drcbœ nq
Sn(s)/Sn2+(aq) || Pb2+(aq)/Pb(s) Gi
2. wb‡Pi Z_¨¸‡jv jÿ Ki- wefe e„w× K‡i| ii. wewµqvwU GKav‡c N‡U
K [Sn ] e„w× [Pb ] n«vm
2+ 2+ iii. wewµqvwUi †ÿ‡Î mwµqZvi µg
i. L [Sn ] e„w×
2+ 3°RX > 2°RX > 1°RX
M [Pb2+] e„w× wb‡Pi †KvbwU mwVK?
N [Sn2+] e„w× [Pb2+] e„w× K i I ii L i I iii
ii. CH3CH2CH2Cl + KOH(alc) ®
B; B †hŠMwUi bvg cÖwcb-1 11. wb‡Pi Dw³¸‡jv jÿ Ki : M ii I iii N i, ii I iii
i. Ag, AgCl(s)/Cl- GKwU RviY- 20. wb‡Pi †KvbwU Av‡jvK mgvYyZv cÖ`k©b
iii. ÿviK‡Z¡i µg R2NH > RNH2 >
NH3 > R3N weRviY Aa©‡Kvl K‡i?
ii. Al Gi Zwor ivmvqwbK Zzj¨vsK K CH3CH(NH2)COOH
wb‡Pi †KvbwU mwVK? -5
9.33 ´ 10 g/C L (CH3)2C = CHCF
Ki L ii
iii. KI n‡Z 10 gI2 GK NÈvq gy³ M CH2(NH2)COOH
M ii I iii N i, ii I iii
Ki‡Z Zwor jvM‡e 2.5 amp N Cl 3C - CH3
3. †KvbwU cvwb‡Z DO Gi cwigvY n«vm wb‡Pi †KvbwU mwVK?
K‡i? Ki L ii
21. 1°, 2°, 3° A¨vwg‡bi g‡a¨ cv_©K¨
K ˆRe `~lK L A‰Re `~lK M iii N i, ii I iii wbY©q Ki‡Z e¨en„Z nq-
M TDS N pH 12. ÿvi gva¨‡g wg_vBj †iW Gi eY© wKiƒc? K HNO3 L Zn I HCl
4. Zwor †Kv‡l we`y¨r Pvjbv Ki‡j K jvj L Kgjv M CHCl3
K¨v‡_v‡W †h cwigvY avZz Rgv nq Zv M njy` N †Mvjvwc N NaNO2 I HCl
wbf©i K‡i †KvbwUi Dci? 13. RviY-weRviY wewµqvq H2S hLb 22. - 241°C ZvcgvÎvq Aw·‡Rb M¨v‡mi
K K¨v‡_v‡Wi MVb I AvKvi H2SO4-Gi iƒcvšÍi nq ZLb S RMS †eM KZ?
L A¨v‡bv‡Wi MVb I AvKvi †gŠj- K R L 2R
M B‡j‡±ªvjvBwUK `ªe‡Yi NbZ¡ K 6wU B‡jKUªb MÖnY K‡i M 2.5 R N 3R
N Pv‡R©i cwigvY Ges avZe Avq‡bi PvR© msL¨v L 8wU B‡jKUªb eR©b K‡i 23. wb‡Pi †Kvb `yBwU `ªe‡Yi †gvjvwiwU mgvb?
5. X ZvcgvÎv I Y Pv‡c †Kvb GKwU M 4wU B‡jKUªb MÖnY K‡i
K 5% NaOH I 10% Na2CO3 `ªeY
N 2wU B‡jKUªb eR©b K‡i
M¨v‡mi NbZ¡ d| M¨vmwUi ZvcgvÎv e„w× L 5% NaOH I 13.3% Na2CO3 `ªeY
14. 1 dm3 cvwb‡Z 50 g As _vK‡j Gi
K‡i 2X Ki‡j M¨v‡mi Pvc nq 0.25 Y| M 10% NaOH I 5% Na2CO3 `ªeY
NbgvÎv wcwcGg GK‡K n‡e-
G Ae¯’vq M¨v‡mi NbZ¡ KZ? K1 L 0.5 N 13.3% NaOH I 5% Na2CO3 `ªeY
Kd L 0.5 d M 0.25 N 0.05 n wb‡Pi Z‡_¨i Av‡jv‡K 24 I 25 bs
M 0.25 d N 0.125 d 15. †KvbwU mwVK? cÖ‡kœi DËi `vI :
6. wb‡Pi †KvbwUi AbyeÜx GwmW cvIqv K C6H4(OH)2 Øviv 4wU mgvYy m¤¢e [H] H2SO O3
hv‡e? L A¨vb_ªvwmb †hŠ‡M 12wU cvB B‡jKUªb we`¨gvb A¾¾¾® B ¾¾¾® C ¾® D
LiAlH4 165°C
K H3PO4 L OH- M B_vbj n¨v‡jvdig wewµqv cÖ`k©b K‡i H2O/Zn
M PH3 N H2S N dmwdb GKwU wbi‡cÿ B‡j‡±ªvdvBj ¾¾¾® 2HCHO + ZnO + H2O
7. wb‡Pi Dw³¸‡jvi jÿ Ki- -
16. MnO4 + C2O4 + 6H ® Mn +
2- + 2+ 24. †KvbwU A †hŠ‡Mi ms‡KZ?
i. I2 jyBm GwmW n‡jI I- jyBm ÿvi CO2 + H2O wewµqv- K CH3COOH L CH3CONH2
i. n‡Z 10 mole CO2 Drcbœ n‡e M CH - CH - COOH
ii. NH3 I HCl M¨vm wgkÖ‡Yi Rb¨ 3 2

ii. GKwU AmvgÄm¨ wewµqv N CH3 - O - CH3

AvswkK Pvc m~Î cÖ‡hvR¨
iii. NTP †Z ZvcgvÎv 20 °C n‡jI iii. wZbwU †hŠM A¤øxq cÖK…wZi 25. DÏxcK Abymv‡i-
SATP †Z ZvcgvÎv 25 °C wb‡Pi †KvbwU mwVK? i. B jy Kvm weKvi‡Ki mv‡_ mvaviY
wb‡Pi †KvbwU mwVK? K i I ii L ii I iii ZvcgvÎv Aat‡ÿc †`q bv
M i I iii N i, ii I iii ii. HCHO †K RvwiZ K‡i A ˆZwi
K i I ii L ii I iii
17. †Kvb MÖæ‡ci me¸‡jv †hŠM cÖvBgvix Kiv hv‡e bv
M i I iii N i, ii I iii
÷¨vÛvW© c`v_©? iii. C †hŠM †eªvwgb `ªeY‡K eY©nxb K‡i
8. 3F Zwor cÖev‡n KZ MÖvg †dwiK K [KH(1O3)], KBrO3, As2O3
Avqb PvR©g³ y n‡e? L HI, KIO3, Na2CO3 wb‡Pi †KvbwU mwVK?
K 18.67 L 56 M H 2SO 4, As O
2 3 , KMnO 4
K i I ii L ii
M 112 N 168 N KBrO3, HCl, Na2S2O3 M ii I iii N i, ii I iii
59

ivRDK DËiv g‡Wj K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. wb‡Pi †KvbwU A¨v‡iv‡gwUK ej‡qi 9. 22 g CO2 M¨v‡mi Rb¨ f¨vÛvi Iqvjm wb‡Pi †KvbwU mwVK?
mwµqZv n«vmKvix MÖæc? mgxKiY n‡jv- K i I ii L ii I iii
M i I iii N i, ii I iii
K - OH
M - CHO
L - NH2
N - CH3
K (P + va ) (V - b) = RT
2
18. 10 g FeSO4 †K RvwiZ Ki‡Z KZ
L (P +
4V ) (
V- )=
a b RT
2. wb‡Pi †KvbwU Uviwmqvix A¨vwg‡bi 2 MÖvg K2Cr2O7 jvM‡e?
2 2
Kvh©Kix g~jK? K 3.23 g L 3.87 g
M (P + ) (V - 4b) = 4RT
4a
K - NH2 L - NH V 2 M 4.12 g N 6.44 g
| 19. mgAvqZb I mgNbgvÎvi NaOH
N (P -
4V )(
V+ )=
Å
a b RT
2
M-N- N-N- 2 2 Ges H2SO4 `ªe‡Yi cÖK…wZ Kx n‡e?
| |
10. GwmW e„wói pH KZ? K Dfagx© L wbi‡cÿ
3. C3H6O †_‡K †Kvb mgvYy m¤¢e? K < 5.6 L 6.0 M A¤øxq N ÿvixq
i. A¨vj‡Kvnj M 6.5 N 6.8
20. Pt, H2/H Gi mv‡_ K¨v‡_vW wnmv‡e
+

ii. A¨vjwWnvBW 11. Av`k© M¨v‡mi Rb¨ ms‡KvPbkxjZv

e¨en„Z n‡e †KvbwU?
iii. wK‡Uvb ¸Yv¼ Z Gi gvb KZ?
K Zn2+/Zn L Mg2+/Mg
wb‡Pi †KvbwU mwVK? K1 L0
M Cu2+/Cu N Fe2+/Fe
M>1 N<1
K i I ii L i I iii 21. wb‡Kj je‡Yi `ªe‡Y 60 min a‡i
12. wb‡Pi †KvbwU CO2 Gi µvwšÍK Pvc?
M ii I iii N i, ii I iii 0.1 Amp we`y¨r Pvjbv Ki‡j K¨v‡_v‡W
K 48.2 atm L 46 atm
4. R3 C - Cl + OH(alc) ® R3C - OH + Cl ; M 72.9 atm
-
N 2.3 atm
wK cwigvY avZz Rgv n‡e?
wewµqvwU †Kvb †KŠkj AbymiY K‡i? 13. 27 °C ZvcgvÎvq O2 AYyi eM©g~j Mo K 0.1094 g L 0.1194 g
K SN1 L SN2 M 0.1294 g N 0.1394 g
eM©‡eM KZ?
M E1 N E2 22. Fe(s) + H2 SO4 (aq) F FeSO4(aq) + H2(g);
K 483.62 ms-1 L 482.62 ms-1
5. wb‡Pi †KvbwU B‡jKUªbvKlx© hyZ †KvlwUi Dc¯’vcb n‡jv-
M 473.72 ms-1 N 473.82 ms-1
wewµqv cÖ`k©b K‡i? K Fe/FeSO4 || H2SO4 / H2, Pt
14. CuSO4 + KI ® Cu2I2 + K2SO4;
L Fe/FeSO4 || H2/H2SO4, Pt
K H2C = CH2 L wewµqvwU‡Z weRviK †KvbwU?
M Fe/FeSO4 || H2SO4, H2
K Cu2+ L I2
O N Fe/FeSO4 || H2, H2SO4
7 M K+ N I-
MR-X N R - C - R¢ 23. Zwor we‡kølYKv‡j †KvbwU Av‡M
15. 5C2O42- ® 10CO2 + nc-; GLv‡b 'n'
6. †KvbwU wdbvBj g~jK? PvR©g³
y n‡e?
Gi gvb KZ?
K C6H5 - L C6H5 - O - K Cu2+ L H+
K4 L5
M C6H5 - CH2 - N C6H5 - CH - M Pb2+ N Na+
| M8 N 10
24. Zn/Zn2+ || Cu2+/Cu; †KvlwUi
7. H3CCOOC6H5 †hŠ‡M †Kvb Kvh©Kix 16. 0.1 M Na2CO3 `ªe‡Yi NbgvÎv ppm
K¨v‡_v‡W msNwUZ wewµqv †KvbwU?
g~jK Dcw¯’Z? GK‡K KZ?
K Zn ® Zn2+ + 2e-
K - CHO L - COOH K 106 L 1060
L Cu2+ + 2e- ® Cu
M - CH2 - OH N - COOR M 5300 N 10600
M Zn2+ + 2e- ® Zn
8. H3CCOOH + H2O F H3C - COO 17. Fe + Sn F Fe + Sn ; G
2+ 4+ 3+ 2+
-
N Cu ® Cu2+ + 2e-
+ H3O G wewµqvq AbyeÜx ÿviK
+ wewµqvwU‡Z- 25. CuSO4 `ªe‡Y 1F PvR© Øviv KZUzKz
†KvbwU? i. Fe3+ RvwiZ n‡q‡Q
Kcvi mwÂZ n‡e?
K H3C - COOH L H3C - COO- ii. Sn4+ RviK K 23.0 g L 26.52 g
M H2O N H3O+ iii. Fe3+ GKwU B‡jKUªb MÖnY K‡i‡Q M 31.77 g N 33.68 g
60

ivRkvnx K‡jR welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK…ó DË‡ii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]
1. jyBm ZË¡ Abyhvqx GwmW †KvbwU? 9. 0.25M HCl I 0.4M HNO3 `ªeY Kx 19. f¨vbWvi Iqvjm aªæeK a Gi †ÿ‡Î-
K R-OH L H2 O Abycv‡Z wgwkÖZ Ki‡j H GwmW wgkÖ‡Yi i. Gi GKK atm L2 mol–2
M BF3 N PH3 NbgvÎv 0.32M n‡e? ii. a Gi dj †ewk n‡j M¨vmwU mn‡R
2. mg‡hvRx eÜ‡bi mylg fvO‡bi d‡j Drcbœ K1:3 L 3:2 Zi‡j cwiYZ Kiv hvq|
cÖRvwZ¸‡jv- M 7:5 N 8:7
iii. a Gi gvb hZ †ewk nq M¨vmwU ZZ
i. LyeB mwµq 10. KZ wWMÖx ZvcgvÎvq 100 kPa Pv‡c 2.24 ev¯Íe êwkó¨ jvf K‡i
ii. LyeB ¯’vqx dm3 GKwU cv‡Î 14.0 gm N2 M¨v‡mi
wb‡Pi †KvbwU mwVK?
iii. PvR© wbi‡cÿ ms‡KvPbkxjZv ¸YvsK 0.10 n‡e? Ki L ii
wb‡Pi †KvbwU mwVK? K - 3.64°C L 265.72°C M i I ii N i, ii I iii
K i I ii L i I iii M 269.36°C N 538.7°C
20. ÷cKK Ly‡j w`‡j (A + B) wgkÖ‡Yi †gvU
M ii I iii N i, ii I iii 11. wd« ‡ Wj-µ¨vdU wewµqvq AlCl3 eënv‡ii
Pvc KZ n‡e?
3. `ªeY `ywUi †ÿ‡Î- KviY n‡jv GwU-
0.45 g 0.325 g
i. B‡j‡±ªvdvBj ˆZwi K‡i
5% Kw÷K 350 mm(Hg) 450 mm(Hg)
5% HCl `ªeY ii. wbiƒ`K wn‡m‡e KvR K‡i
3 †mvWv `ª
e Y 550 mL 425 mL
50 cm iii. A¤ø wn‡m‡e KvR K‡i
50 cm3
A-cvÎ B-cvÎ wb‡Pi †KvbwU mwVK? A-M¨vm B-M¨vm
K i I iii L i I ii K 0.25 atm L 0.39 atm
i. A I B cv‡Îi `ªe‡Yi NbgvÎv ppm
M 0.45 atm N 0.52 atm
GK‡K mgvb M ii I iii N i, ii I iii
+ 21. 1 ppm = ?
ii. A I B cv‡Îi wgkÖ‡Yi cÖKw… Z wbi‡cÿ 12. MnO- + O 2- H
4 2 ® ; wewµqvwU mgZvK…Z i. 1 mg mL–1
iii. A I B cv‡Îi `ªe‡Yi UvB‡Uªk‡b mgxKi‡Y M„nxZ ev ewR©Z B‡jKUª‡bi ii. 1 mg L–1
†dbjd_¨vwjb wb‡`©kK eënvi Kiv hvq msL¨v KZwU? iii. 1 mg/1gm
wb‡Pi †KvbwU mwVK? K4 L5 wb‡Pi †KvbwU mwVK?
K i I ii L i I iii M7 N 10 K i I ii L i I iii
M ii I iii N i, ii I iii 13. †KvbwU AwaKZi w¯’wZkxj? M ii I iii N i, ii I iii
4. Zwor ivmvqwbK Zzj¨v¼ †KvbwUi †ewk? K H3C+ L CH3CH2+ n wb‡Pi Aby‡”Q`wU co Ges 22 I 23bs
+
K Ag L Cu M Fe N Cr M (CH 3 ) 3 C N (PH)3C+ cÖ‡kœi DËi `vI :
5. 2 L AvqZ‡bi GKwU cv‡Î 0.25 g O2, 14. jeY †mZz‡Z eën„Z nq- A I B avZz Øviv GKwU Zwor ivmvqwbK
0.25 g N2, 0.25 g CO2 I 0.25 g SO2 i. KCl
ii. NH4NO3
†Kvl MVb Kiv n‡jv| †KvlwUi †ÿ‡Î A I
M¨vm wgwkÖZ Av‡Q| †Kvb M¨vmwUi AvswkK iii. Mg(NO3)2 B cÖgvY weRviY wefe h_vµ‡g
Pvc †ewk? wb‡Pi †KvbwU mwVK? - 0.76V Ges - 0.44V|
K O2 L N2 M CO2 N SO2 K i I ii L i I iii 22. DÏxc‡Ki †KvlwUi †mj wef‡ei gvb-
6. C4H10O †hŠM mgvYyZv cÖ`k©b Ki‡Z cv‡i- M ii I iii N i, ii I iii K + 0.32 V L - 0.32 V
i. Ae¯’vb mgvYyZv 15. SATP †Z †Kvb M¨vmwUi RMS †eM M + 1.20 V N - 1.20 V
ii. †gUvgvwiRg 481.97 ms–1 KZ? 23. DwjøwLZ Z‡_ï Av‡jv‡K-
iii. U‡UvgvwiRg K bvB‡Uªv‡Rb L Kve©b WvB A·vBW i. B cv‡Î A je‡Yi `ªeY `xN©Kvjxb
wb‡Pi †KvbwU mwVK? M Aw·‡Rb N wg‡_b ivLv hv‡e bv
K i I ii L i I iii Zn/H2O ii. †Kvl wewµqvwU ¯^Ztù‚Z©fv‡e NU‡e
M ii I iii N i, ii I iii
16. A + O3 ® B ¾¾¾® wg_vb¨vj +
iii. A ÿqcÖvß n‡e
7. RviY weRviY wewµqvq H2S hLb H2SO4 †cÖvcvb¨vj; A †hŠMwU n‡jv- wb‡Pi †KvbwU mwVK?
K Bw_b L †cÖvwcb
G cwiYZ nq ZLb S †gŠjwU- K i I ii L i I iii
M 1-weDwUb N 2-weDwUb
K 8wU B‡jKUªb MÖnY K‡i M ii I iii N i, ii I iii
H2 O
L 8wU B‡jKUªb eR©b K‡i 17. CH3Mgl + A ® hyZ †hŠM ¾¾® 24. A + H2O ¾¾¾¾¾®
20%H 2SO 4
CH 3-CHO
HCl
M 2wU B‡jKUªb MÖn Y K‡i 2%HgSO 4
(CH3)2CHOH + Mg(OH)
N 2wU B‡jKUªb eR©b K‡i A †hŠ‡Mi Kvh©Kix g~jK †KvbwU?
A- †hŠMwU-
8. 21– + Cl2 = I2 + 2Cl– G wewµqvwU GKwU K -OH L C=C
i. 2, 4 DNP Gi mv‡_ wewµqv K‡i M -C º C- N COOH
RviY-weRviY wewµqv, KviY- ii. A¨vjWj Nbxfeb wewµqv †`q
i. l– B‡jKUªb Z¨vM K‡i l2-G cwiYZ nq
25. Pt, H2/H+(E0 - 0.0V) Gi m‡½ A¨v‡bvW
iii. wK¬‡gbmb weRviY wewµqv AskMÖnY K‡i
ii. Cl2 B‡jKUªb Z¨vM K‡i Cl–-Gi
wn‡m‡e eën„Z nq †KvbwU?
wb‡Pi †KvbwU mwVK? i. Zn/Zn2+ E0 = + 0.76V
cwiYZ nq K i I ii L i I iii ii. Cu2+/Cu E0 = + 0.34V
iii. Cl 2 B‡jKUªb MÖnY K‡i Cl – -G cwiYZ nq M ii I iii N i, ii I iii iii. Fe/Fe2+ E0 = + 0.44V
wb‡Pi †KvbwU mwVK? 18. †KvbwU kw³kvjx RviK? wb‡Pi †KvbwU mwVK?
K i I ii L i I iii K Al 3+
L Zn 2+ K i I ii L i I iii
M ii I iii N i, ii I iii M H+ N Cu2+ M ii I iii N i, ii I iii
61

we G Gd kvnxb K‡jR, h‡kvi welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. 0.25 †gvj GKwU M¨vm 24.63 atm 9. 3.5% NaHCO Gi NbgvÎv KZ †gvjvi? 19. wb‡Pi †KvbwU RviK I weRviK
Pv‡c 0.5 wjUvi AvqZ‡bi cv‡Î Av‡Q| K 0.3301 L 0.4167 Dfqiƒ‡c wµqv K‡i?
M 0.5267 N 0.8132
KZ ZvcgvÎvq M¨vmwU Av`k© AvPiY K H2O2 L CuSO4
10. 500 mL †Wwm‡gvjvi `ªe‡Y KZ MÖvg M SO3 N KMnO4
Ki‡e?
Na2CO3 _v‡K? 20. wb‡Pi †KvbwU weRviK?
K 0°C L 25°C
K 2.65 g L 5.30 g
M 300 K N 600 K K †eb‡RvwqK GwmW
M 6.30 g N 10.60 g
2. ms‡KvPbkxjZv ¸Yv¼ Z > 1 n‡j L wg_v‡bvwqK GwmW
11. cÖgvY `ªeY †KvbwU?
M¨v‡mi Rb¨ †KvbwU mwVK? K 1.0 M Na2CO3 L 1.0 g H2SO4 M B_v‡bvwqK GwmW
K AwaK ms‡KvPbkxj M 1.0 mL H2SO4 N 1.0 mol H2SO4 N †K¬v‡iv B_v‡bvwqK GwmW
L Kg ms‡KvPbkxj 12. Kv‡e©vwbqvg Avqbmg~‡ni ¯’vwq‡Z¡i µg 21. wb‡Pi †KvbwU GKB mg‡MvÎxq †kÖwYi
M Av`k© N Ams‡KvPbkxj †KvbwU? m`m¨?
+ + + +
dE
3. Av`k© M¨v‡mi †ÿ‡Î, dV T = ? ( ) K CH3 > CH2R > CHR2 > CR3
+ +
L CH3 > CHR2 > CH2R > CR3
+ +
K B‡_b, wg‡_b, †cÖvwcb
L Bw_b, †cÖvwcb, weD‡Ub
K0 L 0.5 + + + +
M CH3 > CH2R > CHR2 > CR3 M B‡_b, †cÖv‡cb, weD‡Ub
M1 N 1.5 + + + +
N CH3 > CHR > CHR2 > CH2R N 1-†nw·b, 2-†nw·b, 3-†nw·b
4. cvwb‡Z KZ¸‡jv nvB‡Wªv‡Rb cigvYy + + + +
[we.`ª. : mwVK DËi CR3 > CHR2 > CH2R > CH3] 22. CH3 - CH(OH) - CH(CH3) -
we`¨gvb?
13. nv‡Kj bxwZ Abymv‡i A¨vb_ªvwm‡b CHO; Gi †hŠMwUi IUPAC bvg Kx?
K 6.023 ´ 1023 wU
mÂiYkxj cvB (p) B‡jKUªb msL¨v K 3-nvBWªw·-2-wg_vBj weDUvb¨vj
L 12.046 ´ 1023 wU
KZ? L 2-nvBWªw·-3-wg_vBj weDUvb¨vj
M 6.023 ´ 1025 wU
K6 L8 M 3-nvBWªw·-2-wg_vBj †cÖvcvb¨vj
N 12.046 ´ 1025 wU M 10 N 14
N 3-nvBWªw·-3-wg_vBj †cÖvcvb¨vj
5. †KvbwU cig k~b¨ ZvcgvÎv? 14. b¨vd_¨vwjb †hŠ‡M mÂiYkxj cvB (p)
23. 2°-A¨vj‡Kvn‡ji Kvh©Kix g~jK
K 0°C L - 373 °C B‡jKUªb msL¨v KZ?
M0K N 273 K †KvbwU?
K2 L6
6. STP-†Z 2.8 g GKwU M¨vm 2.24 L M 10 N 14 O
|| |
AvqZb `Lj K‡i, M¨vmwU n‡Z cv‡i- 15. wb‡Pi †Kvb g~jKwU †ebwRb ej‡q K - C - OH L - CH - OH
K CO2 L N2 A‡_©v-c¨viv †gUv wb‡`©kK? |
K - CHO L - CN M= C - OH N CH2OH
M O3 N NO
M - Br N - NO2 24. Wvë‡bi AvswkK Pvc m~Î cÖ‡hvR¨
7. GKB ZvcgvÎv I Pv‡c mgcwigvY
†Kvb †ÿ‡Î?
(fi) A, B I C M¨vm c„_Kfv‡e 16. wb‡Pi †Kvb g~jKwU †ebwRb ej‡q
†gUv wb‡`©kK? K F2, H2 L CH4, Cl2
mgAvqZ‡b iwÿZ Av‡Q|
K - NHCH3 L - SO3H M NH3, HCl N N2, O2
GLv‡b, MA > MC > MB n‡j †KvbwU
M - O - CH3 N - CH3 25. ev¯Íe M¨vmmg~n Av`k© M¨v‡mi b¨vq
mwVK? 17. A¤øxq gva¨‡g KMnO4 KqwU B‡jKUªb AvPiY K‡i-
K PA = PB = PC L PA > PB > PC
MÖnY K‡i? i. D”P ZvcgvÎvq
MP <P <P NP >P >P
B C C B C A
K3 L4
8. w¯’i ZvcgvÎvq 750 mm(Hg) Pv‡c ii. D”P Pv‡c
M5 N6
GKwU M¨v‡mi NbZ¡ 0.85 g/L| 560 18. [Co(CN)6]3- Avq‡b Co Gi RviY iii. wb¤œ Pv‡c

mm(Hg) Pv‡c M¨v‡mi NbZ¡ KZ n‡e? gvb KZ? wb‡Pi †KvbwU mwVK?
K 63 g/L L 6.3 g/L K-6 L-3 K iii L i I ii
M 0.63 g/L N 0.063 g/L M+3 N+6 M i I iii N ii I iii
62

PÆMÖvg K‡jR welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. mgf‡ii CH4 I H2 †K GKwU 10. C4H10O wb‡¤œi †Kvb †hŠM †kÖwYi 17. †KvlwUi Zwo”PvjK ej KZ n‡e?
k~b¨cv‡Î 25 °C G ivLv n‡jv| H2 Gi mvaviY ms‡KZ? K - 0.32 V L + 0.32 V
i. Kve©wbj M + 1.20 V N - 1.20 V
AvswkK Pvc †gvU Pv‡ci fMœvsk n‡e-
1 1 8 16 ii. A¨vj‡Kvnj 18. 0.5 F Zwor wØ‡hvRx †gŠ‡ji Zworwe‡køl¨
K
2
L
9
M
9
N
17 iii. B_vi `ªe‡Y cÖevwnZ Ki‡j †gŠ‡ji KZwU
2. Zwor we‡kølYKv‡j †Kvb AvqbwU Av‡M wb‡Pi †KvbwU mwVK? cigvYy ZworØv‡i mwÂZ n‡e?
L i I ii K 1.5075 ´ 1023 L 3.011 ´ 1023
PvR©g³y n‡e? Ki
M 6.023 ´ 1023 N 7.52875 ´ 1023
K Na+ L Au3+ M ii I iii N iii
M H+ N Cu2+ 11. I- + IO3- + 6H+ ® I2 + 3H2O 19. M¨v‡mi MwZkw³ wbf©i K‡i-
3. w¯’i ZvcgvÎvq eM©g~j Mo eM©‡e‡Mi wewµqvwU‡Z- i. ZvcgvÎvi Dci
µg †KvbwU? ii. Pvc I AvqZ‡bi Dci
i. IO3- Gi weRviY N‡U
K H2 > N2 > CO2 L N2 > CO2 > H2 iii. M¨v‡mi cÖK…wZi Dci
ii. I- weRviK
M CO2 > N2 > H2 N N2 > H2 > CO2 iii. H+ RviK
wb‡Pi †KvbwU mwVK?
wb‡Pi Z‡_ï Av‡jv‡K 4 I 5 bs K i I ii L ii I iii
n wb‡Pi †KvbwU mwVK?
cÖ‡kœi DËi `vI : M i I iii N i, ii I iii
K i I ii L ii I iii
H2O + HCl(aq) F H3O+ + B 20. Ca(OCl)Cl †hŠ‡M †K¬vwibØ‡qi RviY
M i I iii N i, ii I iii
4. B-Gi ms‡KZ †KvbwU? msL¨v h_vµ‡g-
n wb‡Pi DÏxc‡Ki Av‡jv‡K 12 I 13 K - 1, +1 L + 1, -1
K Cl- L Cl
M Cl +
N Cl
bs cÖ‡kœi DËi `vI : M + 2, -1 N +1, +2
2 2- + 2+
Cr2O7 + 14H + 6Fe ® [we.`ª. : K I L DfqB mwVK]
5. DÏxc‡K H3O+ n‡jv- 2Cr3+ + 6Fe3+ + 7H2O
i. GwmW
21. Ôwd‡bvjd_¨vwjbÕ wb‡¤œi †Kvb †Rv‡oi
12. DÏxcK wewµqvwU‡Z cÖ‡Z¨K †µvwgqvg
ii. H2O Gi AbyeÜx ÿviK
Abygvc‡b eënvi nq?
Avqb KZwU B‡jKUªb MÖnY K‡i‡Q? K NH4OH + HF
iii. GwU sp msKwiZ
3
K 3wU L 5wU M 6wU N 12wU L H2SO4 + NaOH
wb‡Pi †KvbwU mwVK? 13. wewµqvwU‡Z H+ nj- M HCl + Na2CO3
K i I ii L i I iii K RviK L weRviK N CH3COOH + KOH
M ii I iii N i, ii I iii M `k©K Avqb N wbiæ`K n wb‡Pi DÏxc‡Ki Av‡jv‡K 22 I 23
6. CH3 - CONH - CH2 - CH3 n wb‡Pi Z‡_ï Av‡jv‡K 14 I 15 bs bs cÖ‡kœi DËi `vI :
†hŠMwUi IUPAC ixwZ Abyhvqx mwVK cÖ‡kœi DËi `vI : 2% Hg2+
CH3 - C º CH ¾¾¾¾® A
bvg- M [Avqib (III) A·vBW] + HCl ® N + H2O 20% H2SO4
Rearrangement
K B_vBj B_vb¨vgvBW 14. M-†hŠ‡Mi A¤øZ¡ KZ? ¾¾¾¾¾¾® B
L N-B_vBj A¨vwmUvgvBW K3 L4 M5 N6 22. DÏxc‡Ki-
M N-A¨vwmUvBj B_vBj A¨vwgb 15. DÏxc‡Ki N-†hŠMwU- i. A †hŠ‡M sp2 Ges sp3 msKwiZ
N N-B_vBj B_vb¨vgvBW i. jyBm GwmW Kve©b Av‡Q
7. wb‡Pi †Kvb¸‡jv wbDwK¬IdvBj? ii. cÖfveK ii. B †hŠMwU RvwiZ n‡q GwmW Drcbœ K‡i
K RNH2, CO2, RMgX iii. wjM¨vÛ iii. B †hŠMwU †dnwjs `ªe‡Yi mv‡_
L RNHR, H2O, ROH wb‡Pi †KvbwU mwVK? wewµqv K‡i bv
M ROH, RMgX, FeCl3 Ki L ii wb‡Pi †KvbwU mwVK?
N RNHR, NH3, AlCl3 M i I ii N i, ii I iii Ki L ii
n wb‡Pi Z‡_ï Av‡jv‡K 8 I 9 bs n wb‡Pi Z‡_ï Av‡jv‡K 16 I 17 bs M i I ii N i, ii I iii
cÖ‡kœi DËi `vI : cÖ‡kœi DËi `vI : 23. DÏxcK Abymv‡i B -Gi cieZx©
LiAlH4 KOH + Br2
GKRb wkÿv_x© `¯Ív avZz wbwg©Z cv‡Î mg‡MvÎK n‡jv-
A ¬¾¾¾¾ R - CONH2 ¾¾¾¾® B
K †cÖvcv‡bvb-2 L weDwUb-2
8. B †hŠM I HNO2 Gi mv‡_ wewµqvq †divm mvj‡dU `ªeY iv‡L| [wRsK I
M weDUv‡bvb-2 N weDUvb¨vj
Drcbœ n‡e- Avqi‡bi cÖgvY weRviY wefe
24. wb‡Pi †Kvb `ªe‡Yi Zwor cwievwnZv
K A¨vj‡Kvnj L A¨vjwWnvBW h_vµ‡g- 0.76 †fvë I + 0.44 me‡P‡q Kg?
M wK‡Uvb N nvB‡WªvKve©b †fvë] K 1% CH3COOH `ªeY
9. A I B n‡jv- 16. DÏxc‡Ki- L 2% CH3COOH `ªeY
i. mg‡MvÎK i. wRsK cvÎwU K¨v‡_vW wnmv‡e KvR K‡i M 5% CH3COOH `ªeY
ii. A¨vwgb ii. †Kvl wewµqvwU ¯^Ztù‚Z© n‡e N 10% CH3COOH `ªeY
iii. ÿviK iii. cvÎwU ÿqcÖvß n‡e 25. A¨vgvMv eµ‡iLvi g~jwfwË †KvbwU?
wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK? 1 1
KVµ LVµ
K i I ii L ii I iii Ki L ii I iii d P
M i I iii N i, ii I iii M i I ii N i, ii I iii MVµT NPµT
63

miKvwi ˆmq` nv‡Zg Avjx K‡jR, ewikvj welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. 1 L 0.08 M MnO4 †_‡K Mn2+ cÖ`Ë 11. †Kvb GwmW †ewk Zxeª GwmW? n wb‡Pi Aby‡”Q`wU c‡ov Ges 19 I 20
weRviY wewµqvi Rb¨ KZ Kzj¤^ K CH3COOH bs cÖ‡kœi DËi `vI :
L CH3CH2COOH KMnO4 + H2SO4 + H2C2O4 ®
Zwo‡Zi cÖ‡qvRb?
M CH3CH2CH2COOH K2SO4 + MnSO4 + H2O + CO2
K 3860 L 38600
N HCOOH 19. DÏxc‡Ki wewµqvq KZ¸‡jv B‡jKUªb
M 42800 N 428000
2. †KvbwU Av‡M PvR©gy³ n‡e? 12. SN2 wewµqvi ˆewkó¨ n‡”Q- Av`vb cÖ`vb n‡q‡Q?
i. †cvjvi `ªve‡K G †KŠkj †`Lv hvq K1 L3
K Li+ L K+
M Ca 2+
N Na + ii. GK av‡c m¤úbœ nq M6 N 10
3. 100 °C ZvcgvÎvq I 1.0526 atm iii. mwµqZvi µg : CH3X > 1°RX > 20. wewµqvwUi Rb¨ †KvbwU mwVK?
2°RX > 3°RX i. 2 mol KMnO4 = 5 mol H2C2O4
Pv‡c CO2 M¨v‡mi NbZ¡ (g/L) KZ? ii. 1000 mL 2 MKMnO4 `ªeY = 5
wb‡Pi †KvbwU mwVK?
K 0.00291 L 0.0149
K i I ii L i I iii mol H2C2O4 `ªeY
M 1.512 N 1.49 ´ 1022
M ii I iii N i, ii I iii iii. 1 mol KMnO4 = 5 mol H2C2O4
4. - 273°C-G N2 Gi †gvjvi AvqZb wb‡Pi †KvbwU mwVK?
KZ dm3? 13. H - COOH wewµqv †`q-
K i I ii L ii I iii
K0 L 6.023 i. †dnwjs `ªe‡Yi mv‡_
M i I iii N i, ii I iii
M 7.00 N 8.50 ii. 2, 4-DNP Gi mv‡_
iii. Na2CO3 Gi mv‡_
21. weRviY wef‡ei gv‡bi µg Abymv‡i
5. Wvë‡bi AvswkK Pvc m~Î cÖ‡hvR¨ †KvbwU mwVK?
†Kvb †ÿ‡Î? wb‡Pi †KvbwU mwVK?
K Na+ < Mg2+ < Al3+
K F2, H2 L CH4, Cl2 K i I ii L i I iii L Na+ > Mg2+ > Al3+
M NH3, HCl N N2, O2 M ii I iii N i, ii I iii M Mg2+ < Na+ > Al3+
6. K…wl Kv‡R mvi‡dR IqvUv‡ii 14. 8.5% w HCl Gi NbgvÎv KZ
weï×Zvi gvb`Ð †KvbwU? v () 22.
N Al3+ < Mg2+ > Na+
MwjZ CaCl2 n‡Z 60 g Ca Rgv
(ppm)? Ki‡Z 5 amp we`y¨r KZ NÈv Pvjbv
K TDS L pH
K 8.0 ´ 104 L 8.5 ´ 104
M COD N BOD 4 Ki‡Z n‡e?
M 4.0 ´ 10 N 4.5 ´104
7. H2O + HCl ® Cl- + H3O+; K 27 L 8.3
15. pH Gi cwimi 3.1 - 4.4 wb‡Pi †Kvb M 11 N 16
wewµqvwU‡Z- wb‡`©k‡Ki Rb¨ cÖ‡hvR¨?
i. HCl Gi AbyeÜx ÿviK n‡jv Cl-
23. Dw³¸‡jv jÿ Ki :
K wg_vBj A‡iÄ L †dbd_¨vwjb i. wbw`©ó ZvcgvÎv I Pv‡c DG = - ve
ii. H2O GKwU GwmW M _vBgj eø– N ÷vP© n‡j †Kvl wewµqv ¯^Ztù‚Z©
iii. H3O+ GKwU AbyeÜx GwmW 16. mgAvqZb I mgNbgvÎvi NaOH ii. E †Kvl = + ve n‡j DG = - ve
wb‡Pi †KvbwU mwVK? Ges H2SO4 `ªe‡Yi wewµqvi cÖK…wZ iii. †Kv‡l Zwor cÖev‡ni d‡j gy³
K i I ii L ii I iii †Kgb n‡e? kw³i n«vm = ˆe`y¨wZK KvR
M i I iii N i, ii I iii K Dfagx© L wbi‡cÿ
wb‡Pi †KvbwU mwVK?
8. jyBm GwmW¸‡jv n‡jv- M A¤øxq N ÿvixq
K i I ii L i I iii
i. SO2 17. †gvjvwiwU wb‡¤œi †KvbwU Øviv cwiewZ©Z M ii I iii N i, ii I iii
ii. CO2 nq?
iii. Ag+ 24. avZzi cÖgvY RviY wef‡ei gvb n‡Z
i. `ªve‡Ki AvqZb
wb‡Pi †KvbwU mwVK? ii. `ª‡ei cwigvY
cv‡i-
K i I ii L ii I iii i. abvZ¥K
iii. ZvcgvÎv
M i I iii N i, ii I iii ii. FYvZ¥K
wb‡Pi †KvbwU mwVK?
9. †Kvb mgvYyZv Avcbv Avcwb NU‡Z iii. k~b¨
K i I ii L i I iii
cv‡i? M ii I iii N i, ii I iii
wb‡Pi †KvbwU mwVK?
K Ae¯’vb mgvYyZv - - K i I ii L i I iii
18. I + OI3 + 6H ® 3I2 + 3H2O; G
+

L MvVwbK mgvYyZv M ii I iii N i, ii I iii

wewµqvwU‡Z-
M †gUvgvwiRg i. OI3- Gi weRviY N‡U
25. jeY †mZz‡Z e¨en„Z nq-
N U‡UvgvwiRg i. KCl
ii. H `ªeY
+
ii. NH4NO3
10. cÖvBgvwi A¨vwg‡bi mv‡_ bvBUªvm iii. I- weRviY iii. Mg(NO3)2
Gwm‡Wi wewµqv Ki‡j wK Drcbœ nq? wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK?
K A¨vj‡Kvnj L A¨vjwWnvBW K i I ii L ii I iii K i I ii L i I iii
M wK‡Uvb N nvB‡WªvKve©b M i I iii N i, ii I iii M ii I iii N i, ii I iii
64

knx` ˆmq` bRiæj Bmjvg K‡jR, gqgbwmsn welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. mg‡gvjvi `ywU M¨v‡mi †gvj fMœvsk KZ? 7. wb‡Pi †KvbwU A¨vgvBW RvZxq †hŠM? n wb‡Pi DÏxcKwU co Ges 15 I 16
K1 L 0.5 K CH3 - CH2 - NH2 bs cÖ‡kœi DËi `vI :
M 0.33 N2 L CH3 - CO - CH2 - NH2 100 mL
2. Pvj©‡mi m~Î Abymv‡i- M CH3 - CON(CH3)2 0.1 M
N CH3 - CO - O - CO - CH3 NaOH
i. V
T
8. wb‡Pi †KvbwU A¨v‡iv‡gwUK bq? 15. DÏxcK `ªeYwU HCl Øviv cÖkwgZ
K L Ki‡j KZ MÖvg HCl cÖ‡qvRb n‡e?
V K 36.5 g L 0.365 g
ii. V M 3.65 g N 0.0365 g
16. DÏxc‡Ki ÿvi‡K Kq AYy NaOH Av‡Q?
M N
K 6.023 ´ 1021 L 6.023 ´ 1023
T
n wb‡Pi DÏxcKwU co Ges 9 I 10 bs M 6.023 ´ 1022 N 6.023 ´ 1020
iii. V cÖ‡kœi DËi `vI : 17. KMnO4 + H2 O2 + H2 SO4 ® DÏxcK
T wewµqvq mgZvhy³ mgxKi‡Y weRviK I
T Rvi‡Ki †gvj msL¨vi AbycvZ n‡jv-
wb‡Pi †KvbwU mwVK? K 5 :2 L 2 :5
Ki L ii M 1 :2 N 5 :1
18. †mwg‡gvjvi Na2CO3 NbgvÎv ppm
M i I ii N ii I iii 9. Y †hŠMwU m¤ú‡K©-
3. 2H2O ® A + OH- G‡ÿ‡Î A-
GK‡K KZ?
i. 1° A¨vwgb
K 5.3 ´ 104 ppm
i. Av`ª© bxj wjUgvm‡K jvj K‡i ii. A¨vgvBW L 5300 ppm
ii. pH Gi gvb 7 Gi AwaK nq iii. HNO2 Gi mv‡_ wewµqv K‡i M 5.3 ´ 105 ppm
iii. GwmW e„wói Rb¨ `vqx wb‡Pi †KvbwU mwVK? N 5.3 ´ 10-4 ppm
wb‡Pi †KvbwU mwVK? Ki L ii H2
M i I ii N i I iii 19. Pt,
H+
Gi mv‡_ K¨v‡_vW wnmve
K i I ii L ii I iii
M ii N i I iii 10. Z †hŠMwU n‡jv- Dchy³ bq †KvbwU?
K CH3 - COOH K Cu2+/Cu L Hg2+/Hg
4. cÖwZwU AYyi MwZkw³i mgxKiY wb‡Pi M Au3+/Au N Mg2+/Mg
L CH3 - CONH2
†KvbwU? M CH3 - CH2NH2 20. wb‡Pi †KvbwU RviY weRviY Aa©‡Kvl?
3 3 K P+, Cl2/Cl- L Ag, AgCl/Cl-
K NART L RT N CH3 - CH2 - OH
2 2 + 2+
M P /Fe , Fe 3+
N NaHg/Na+
3 3 n wb‡Pi DÏxcKwU co Ges 11bs cÖ‡kœi
M nRT N PV 21. GK †gvj Al2O3 n‡Z GK †gvj Al
2 2 DËi `vI :
NaOH
†c‡Z KZ d¨vivW Zwor cÖ‡qvRb?
n wb‡Pi DÏxcKwU co Ges 5 I 6 bs 2CH3 - CHO ¾¾® Drcv` K 1F L 30F
cÖ‡kœi DËi `vI : 11. Drcv`wU n‡jv- M 1.5 F N 6F
n2a 22. wb‡Pi wZbwU M¨vjfvwbK †Kv‡li e.m.f
( P+
V2) (V - nb) = nRT K CH3 - CH2 - CH2 - CHO
L CH3 - CH(OH) - CH2 - CHO Gi gvb h_vµ‡g E1, E2 I E3|
5. 4g He M¨v‡mi Rb¨ Ae¯’vi mgxKiY M CH3 - CH2 - CH2 - OH i. Zn | Zn2+ (1M) || Cu2+(0.1 M) | Cu
ii. Zn | Zn2+(1M) || Cu2+(1 M) | Cu
wb‡Pi †KvbwU? N CH3 - CH2 - CH2 - CH3
iii. Zn | Zn2+(0.1 M) || Cu2+(1 M) | Cu
2
12. ÿviK‡Z¡i µg n‡jv-
K (P + 2Vn a )(V - 4b) = 4RT
2
K 1° > 2° > 3° > NH3
wb‡Pi †KvbwU mwVK?
K i I ii L ii I iii
L (P + )(V - 4b) = 2RT
2a L 3° > 2° > 1° > NH3 M i I iii N i, ii I iii
2
V M 2° > 1° > 3° > NH3
23. †Kvb AvqbwU Av‡M PvR©gy³ n‡e?
N NH3 > 1° > 2° > 3°
M (P + )(V - 4b) = 4RT
4a K Ni2+ L Cu2+
2
V 13. GK MÖvg AYy CO2 n‡jv- M Ag +
N Au3+
N (P + )(V - b) =RT
4a i. 44 g CO2 24. Pt, H2(1 atm)/HCl (1M) || AgNO 4(1M)/Ag(s),
V ii. 1 MÖvg CO2 E°Ag/Ag + = - 0.80 V †KvlwUi emf
n2a iii. GK †gvj CO2 n‡jv-
6. V2
ivwkwU n‡jv-
wb‡Pi †KvbwU mwVK? K + 0.80 V L - 0.80 V
K Pvc ms‡kvabx K i I ii L ii I iii M - 0.40 V N 0.0 V
L AvqZb ms‡kvabx M ii N i I iii 25. †ebwRb ejq mwµqKvix MÖæc n‡jv-
M †gvj ms‡kvabx 14. †KvbwU kw³kvjx weRviK? K - CHO L - COOH
N †gvU AvqZb K Zn L Al M Li N Fe2+ M - CN N - OR
65

G·K¬wz mf g‡Wj †U÷

G·K¬wz mf g‡Wj †U÷ 01 welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} 5}
27 °C P1
0.9 atm P2
O2 + X(20 %) V P3 V
2L
O2
1
e¨vwcZ n‡Z 80 s e¨vwcZ n‡Z 85 s - 273 200 0 100 200 300 ®
P
mgq cÖ‡qvRb mgq cÖ‡qvRb (1bs) 0°C (2bs)
A cvÎ B cvÎ K. RMS †eM Kv‡K e‡j? 1
K. KvBivj Kve©b Kv‡K e‡j? 1 L. mKj eªæb‡÷W ÿvi jyBm ÿvi- e¨vL¨v Ki| 2
M. DÏxc‡Ki 1bs †jLwPÎ n‡Z ZvcgvÎv cwigv‡ci
L. Sn RviK-weRviK DfqB- e¨vL¨v Ki|
2+
2
M. A cv‡Îi M¨v‡mi AYy msL¨v wbY©q Ki| 3 GKwU †¯‹j cvIqv hvq- e¨vL¨v Ki| 3
N. B cv‡Î X M¨v‡mi AvYweK fi wbY©q m¤¢e wKbv
N. M¨vm wmwjÛv‡ii wbivcËv weav‡b †jLwPÎ-2 mgw_©Z
MvwYwZKfv‡e we‡kølY Ki| 4 m~Î †Kvb f‚wgKv ivL‡Z cv‡i wKbv- we‡kølY Ki| 4
2} 6}
6-Kve©bwewkó
Mvp HNO3 + H2SO4 Sn/HCl
A¨v‡iv‡gwUK ¾¾¾¾¾¾¾¾® B ¾¾¾®C
60 °C
nvB‡WªvKve©b
A
K. †iv‡RbgyÛ weRviY Kx? 1
L. A¨vj‡Kvnj Dfagx©- e¨vL¨v Ki| 2
M. A †_‡K B ˆZwii †KŠkj eY©bv Ki| 3 K. wb‡`©kK Kx? 1
N. B I C †K bvB‡Uªkb Ki‡j cÖwZ¯’vcK GKB Ae¯’v‡b L. A¨vjKvBb A¤øagx© †Kb? 2
cÖwZ¯’vwcZ n‡e wKbv- we‡kølY Ki| 4 M. B cv‡Îi `ªeY‡K Kxfv‡e †Wwm‡gvjvi `ªe‡Y cwiYZ
Kiv hv‡e? 3
3}
N. C cv‡Îi wgkÖ‡Y AviI 10 mL 0.05 M NaOH †hvM
0.25 M †fRvj hy³
20 mL 5.6g Fe + Ki‡j wgkÖ‡Yi NbgvÎv wbY©q m¤¢e wKbv-
KMnO4 `ªeY H2SO4 `ª eY MvwYwZKfv‡e we‡kølY Ki| 4
A B 7}
A
K. wMÖMbvW© weKviK Kx? 1
L. NaOH †m‡KÛvix cÖgvY `ªeY- e¨vL¨v Ki| 2 Cr Fe E°Cr/Cr3+ = + 0.77 V
E°Fe/Fe2+ = + 1.44 V
M. A I B `ªe‡Yi wgkÖ‡Y msNwUZ wewµqv‡K Avqb 0.1 M E°Al/Al3+ = + 1.66 V
Cr3+ Fe2+
B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
N. A `ªeY‡K e¨envi K‡i B `ªe‡Y Dcw¯’Z Avqi‡bi K. cÖgvY nvB‡Wªv‡Rb ZworØvi Kx? 1
†fRv‡ji kZKiv cwigvY wbY©q Kiv m¤¢e wKbv- L. SI GK‡K R Gi gvb wbY©q Ki| 2
MvwYwZKfv‡e we‡kølY Ki| 4 M. DÏxc‡Ki †Kv‡li †Kvl wefe wbY©q Ki| 3
4} N. DÏxc‡Ki A¨v‡bv‡Wi `ªeYwU‡K Al avZz wbwg©Z cv‡Î
msiÿY Kiv hv‡e wKbv? MvwYwZK hyw³ `vI| 4
3 O
8 } C4H8 ¾¾¾¾® A + B (wK‡Uvb)
Zn.H2O
RviY
A ¾¾¾® C (†hŠMwU GK Kve©bwewkó ˆRe GwmW)
K. wWKve©w·‡jkb Kx? 1 K. A¨vwmwUwjb Kx? 1
L. mvB‡K¬v‡n‡·b A¨v‡iv‡gwUK †hŠM bq- e¨vL¨v Ki| 2 L. wKfv‡e Kve©wbj g~jK‡K wgw_wjb g~j‡K iƒcvšÍi Ki‡e? 2
M. C †hŠMwU cvwb‡Z `ªexf‚Z nq †Kb? 3 M. C †hŠMwU GKvav‡i GwmW I A¨vjwWnvBW- e¨vL¨v Ki| 3
N. D †hŠMwU hyZ wewµqvq AskMÖnY Ki‡e wKbv- N. A I B Gi ms‡KZ n‡Z A¨vjwKbwUi ms‡KZ wbiƒcb
we‡kølY Ki| 4 m¤¢e wKbv- hyw³mn we‡kølY Ki| 4
67

G·K¬wz mf g‡Wj †U÷ 02 welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1} M. jvwe‡ei msNwUZ wewµqvwU Avqb-B‡jKUªb c×wZi
mvnv‡h¨ mgZv Ki| 3
N. nvwgg I jvwe‡ei e¨en„Z AvKwi‡Ki †KvbwU
wkí‡ÿ‡Î e¨envi Kiv AwaK jvfRbK?
MvwYwZKfv‡e we‡kølY Ki| 4
K. †gvj Gi AvaywbK msÁv `vI| 1 5}
L. K‡ivmb GKwU ivmvqwbK cÖwµqv- e¨vL¨v Ki| 2 V1 = 100 cm3 25 °C V2 = 120 cm
3

P1 = 50 cm(Hg) P2 = 70 cm(Hg)
M. B n‡Z A †hŠ‡Mi iƒcvšÍi mgxKiYmn †jL| 3 O2 M¨vm
N2 M¨vm
N. B‡jKUªbvKlx© cÖwZ¯’vcb wewµqvq B I C Gi
K. A¨vwjmvBwK¬K †hŠM Kx? 1
mwµqZvi Zzjbv Ki| 4
L. RviY msL¨v I †hvRbxi g‡a¨ cv_©K¨ wjL| 2
2} M. N2 M¨v‡mi AYymsL¨v wn‡me Ki| 3
100 mL 50 mL
N. DwjøwLZ M¨vmØ‡qi wgkÖ‡Yi ch©‡ewÿZ †gvU Pvc 58
2.5 M 10%
cm(Hg) n‡j M¨vm¸‡jv ev¯Íeagx© we‡kølY Ki| 4
HCl `ªeY Na2CO3 `ªeY
6}
A B
K. Zwor ivmvqwbK Zzj¨vsK Kx? 1
L. bvB‡Uªkb wewµqvq Mvp H2SO4 e¨envi Kiv nq †Kb? 2
GLv‡b n = 4
M. B `ªeY Øviv A `ªe‡Yi Abygvc‡b Dchy³ wb‡`©kK
K. `ªeY Pvc Kx? 1
Kxfv‡e wbe©vPb Ki‡e? e¨vL¨v Ki| 3
L. AvqZb w¯’i †i‡L ZvcgvÎv evov‡j M¨v‡mi Pvc e„w×
N. A cv‡Îi `ªeY‡K B cv‡Î wgwkÖZ Kiv n‡j wgkÖ‡Yi cvq †Kb? 2
cÖKw… Z Kxiƒc n‡e- MvwYwZKfv‡e †`LvI| 4 M. A I B Gi g‡a¨ †KvbwU wÎgvwÎK mgvYyZv cÖ`k©‡b
3} mÿg? e¨vL¨v Ki| 3
NaCl Gi Rjxq `ªeY MgSO4 `ªeY ¬ Zvgvi cvÎ N. C I D Gi cwigvYMZ wfbœZvi KviY we‡kølY Ki| 4
A B 7}
GLv‡b, E°Cu/Cu2+ = - 0.34 V; E°Mg2+/Mg = - 2.37 V
K. mg‡cÖl †iLv Kx? 1
L. BOD A‡cÿv COD Gi gvb †ewk nq †Kb- e¨vL¨v K. cÖvBgvwi ÷¨vÛvW© c`v_© Kx? 1
Ki| 2 L. †mwg‡gvjvi `ªeY cÖgvY `ªeY- e¨vL¨v Ki| 2
M. Zwor we‡kølYKv‡j A cv‡Î msNwUZ Aa©‡Kvl I †Kvl M. A n‡Z C Drcv` MV‡bi †KŠkj eY©bv Ki| 3
wewµqv hyw³mnKv‡j Dc¯’vcb Ki| 3 N. B I C †hŠ‡Mi ivmvqwbK a‡g©i Zzjbv Ki| 4
N. 'B' cv‡Îi `ªeYwU‡K mswkøócv‡Î ivLv hv‡e wK-bv 8 } cUvwgqvg †K¬v‡iU-Gi Zvcxq we‡qvRb †_‡K cÖvß M¨vmwUi
we‡kølY Ki| 4 Rb¨ `yBwU wfbœ ZvcgvÎvq A¨vgvMv †jLwPÎ wb¤œiƒc :
4 } nvwgg 1.5 g †jvnvi AvKwiK‡K 100 mL H2SO4 G `ªexf‚Z PV 300 K
1200 K
K‡i cÖvß `ªe‡Yi 25 mL wb‡q UvB‡Uªkb Ki‡Z 0.02 M
NbgvÎvi 22.5 mL KMnO4 `ªeY cÖ‡qvRb nq| jvwee Ab¨ P
GKwU †jvnvi AvKwi‡Ki 1.5 g wb‡q 100 mL H2SO4 G K. AmvgÄm¨ wewµqv Kx? 1
`ªexf‚Z K‡i cÖvß `ªe‡Yi 25 mL wb‡q UvB‡Uªkb Ki‡Z 0.02 L. - NO2 g~jK †gUv wb‡`©kK †Kb? e¨vL¨v Ki| 2
M, 25.5 mL K2Cr2O7 cÖ‡qvRb nq| M. cÖ`Ë D”PZi ZvcgvÎvq M¨vmwUi rms †eM wn‡me Ki| 3
K. AcÖwZmg Kve©b Kx? 1 N. wfbœ ZvcgvÎvq †jLwP‡Îi cÖKw… Z wfbœ nIqvi KviY
L. M¨vjfvwbK †Kv‡l jeY †mZz e¨envi Kiv nq †Kb? 2 we‡kølY Ki| 4
68

G·K¬wz mf g‡Wj †U÷ 03 welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI : K. jyBm GwmW Kv‡K e‡j? 1
GKwU †Kv‡li †Kvl WvqvMÖvg : Mg(s)/Mg2+(0.001 M) | L. NH3 I CH3NH2 Gi g‡a¨ †KvbwU AwaK ÿviagx©
Cu2+ (0.0001 M)/Cu(s) †hLv‡b, E°Mg2+/Mg = - 2.37 V; Ges †Kb? 2
E°Cu2+/Cu = + 0.34 V| M. DÏxc‡K DwjøwLZ A A_ev B ˆZwii 2wU wewµqv
K. Kv‡e©vwbqvg Avqb Kv‡K e‡j? 1 mgxKiYmn wjL| 3
L. wb‡`©kK wKfv‡e Zv‡ì eY© cwieZ©b K‡i, e¨vL¨v Ki| 2 N. P Ges Q Dfq 2 : 4 DNPH Gi mv‡_ njy` Aat‡ÿc
M. DÏxc‡Ki †KvlwUi emf wbY©q Ki| 3 †`q wKš‘ †dnwjs `ªeY Ges U‡jb weKvi‡Ki mv‡_ P
N. CuSO4 `ªeY‡K Mg Gi cv‡Î ivLv hv‡e wK? wewµqv Ki‡jI Q wewµqv K‡i bv †Kb? 4
DÏxc‡Ki Av‡jv‡K we‡kølY Ki| 4 6 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI :
2 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI : GKRb QvÎ GKwU weKv‡i 49 g wb‡q 500 mL AvqZ‡bi
Abv`ª© AlCl3
(i) + CH3Cl ¾¾¾¾® A + HCl H2SO4 `ªeY cÖ¯‘Z Kij| Zvi cÖ¯‘ZK…Z `ªeY †_‡K 50 mL
Mvp H2SO4 cwigvY `ªeY wb‡q 10% NaOH `ªeY Øviv cÖkwgZ K‡i
(ii) + HNO3 ¾¾¾¾® B + H2O
cÖkgb we›`y wbY©q Kij|
K. RviY wefe Kx? 1 K. †gvjvi M¨vm aªæeK Kv‡K e‡j? 1
L. B_vBb A¤øagx© †Kb, wewµqvmn wjL| 2 L. †Kv‡l jeY †mZz eënvi Kiv nq †Kb? 2
M. DÏxc‡Ki B †hŠMwU wPwýZ K‡i ii bs wewµqvi wµqv
M. DÏxc‡Ki ÿvi `ªeYwUi NbgvÎv ppm GK‡K wbY©q
†KŠkj †`LvI| 3
Ki| 3
N. B‡jKUªbvKlx© cÖwZ¯’vcb wewµqvq DÏxc‡Ki A
N. DÏxc‡Ki UvB‡Uªkb cÖwµqvq Dchy³ wb‡`©k‡Ki
†hŠMwU A_©-c¨viv wb‡`©kK n‡jI B †hŠMwU †gUv
wb‡`©kK †Kb, e¨vL¨v `vI| 4 cÖ‡qvRbxqZv hyw³mn eY©bv Ki| 4
3 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI : 7 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI|
GKB AvYweK ms‡KZ wKš‘ wfbœ wfbœ MvVwbK ms‡KZwewkó
I
II †hŠMmg~n‡K ci¯ú‡ii mgvYy ejv nq| C3H6O AvYweK
III
ms‡KZ Øviv MwVZ Kve©wbj g~jKwewkó A I B `ywU mgvYy
PV
m¤¢e| A †dnwjs `ªeY Ges U‡jb weKvi‡Ki mv‡_ wewµqv
P Ki‡jI B Zv K‡i bv|
K. n¨v‡Kj bxwZ wK? 1 K. gy³ g~jK Kv‡K e‡j? 1
L. Av‡jvK mwµq mgvYyZvi kZ©mg~n eY©bv Ki| 2 L. UjyBb GKwU A¨v‡iv‡gwUK †hŠM, e¨vL¨v Ki| 2
M. DÏxc‡Ki iii bs †jLwP‡Îi M¨vmwUi Rb¨ Gi Ae¯’vi M. 2 : 4-WvBbvB‡UªvwdbvBj nvBWªvwRb Gi mv‡_ A I B
mgxKiY wbY©q Ki| 3 Gi wewµqv mgxKiYmn wjL| 3
N. DÏxc‡Ki iii bs †jLwP‡Îi M¨vm A‡cÿv i I ii bs N. A I B Gi mwµqZvi Zzjbv Ki| 4
wP‡Îi M¨vm e¨wZµgagx©, hyw³mn we‡kølY Ki| 4 8 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI| cÖwZwU
4 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI : cv‡Îi ZvcgvÎv 25 °C|
C6H5CH = CHCOOH C2H5CH(NH2)COOH
A B A M¨vm B M¨vm
K. gvK©wbKf wbqg Kx? 1 1.0 L 1.50 L C M¨vm
50 kPa 150 kPa 2.0 L
L. †dbj A¤øagx© n‡jI A¨vj‡Kvnj wbi‡cÿ, e¨vL¨v Ki| 2
0.887 g 1.6985 g
M. A †hŠ‡Mi †fZi w`‡q CCl4 G `ªexf‚Z Br2 `ªeY
1bs cvÎ 2bs cvÎ 3bs cvÎ
Pvjbv Ki‡j wK NU‡e mgxKiYmn wjL| 3
K. B‡jK‡UªvdvBj Kx? 1
N. A I B †hŠM `ywU wK GKB ai‡bi mgvYyZv cÖ`k©b
L. RviY-weRviY GK mv‡_ N‡U †Kb, B‡jKUªbxq
Ki‡e? KviYmn we¯Í vwiZ e¨vL¨v Ki| 4
5 } wb‡Pi DÏxcKwU co Ges cÖk¸ œ ‡jvi DËi `vI| gZev‡ì mvnv‡h¨ e¨vL¨v Ki| 2
M. 1bs Ges 2bs cv‡Îi `ªeY‡K 3bs cv‡Î wgwkÖZ Kiv
n‡j 3bs cv‡Î †gvU Pvc wbY©q Ki| 3
N. A I B M¨v‡mi g‡a¨ †KvbwUi e¨vc‡bi nvi †ewk
MvwYwZKfv‡e we‡kølY Ki| 4
69

G·K¬wz mf g‡Wj †U÷ 04 welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI : M. A, E I P M¨v‡mi ms‡KvPbkxjZv gv‡bi wfbœZvi
CCl4 Zn/H2O KviY we‡kølY Ki| 3
A + O3 ¾¾® I‡RvbvBW ¾¾¾¾® B + C
N. A, B I D M¨v‡mi g‡a¨ †KvbwU‡K mn‡R ZijxKiY
A cuvP Kve©bwewkó Am¤ú„³ ˆRe †hŠM| B I C DfqB 2, 4- mnR e‡j Zzwg g‡b Ki? 4
DNP Gi mv‡_ wewµqv Ki‡jI B †dnwjs `ªe‡Yi mv‡_ 5 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI :
wewµqv K‡i bv| B b~¨bZg Kve©bwewkó ˆRe †hŠM| HNO3(conc) (Sn)
C6H6 ¾¾¾¾¾¾® X ¾¾¾¾® Y
K. cÖvBgvwi wb‡`©kK Zwo`Øvi Kv‡K e‡j? 1 H2SO4(conc) HCl(conc)
L. Zxeª ÿv‡ii AbyeÜx A¤ø kw³kvjx- e¨vL¨v Ki| 2 K. cvwbi BOD 5 ppm ej‡Z Kx eyS? 1
M. B I C Gi n¨v‡jvdig wewµqv cÖ`k©‡bi m¤¢ve¨Zv we‡kølY Ki| 3 L. †gvjvwiwU ZvcgvÎvi Dci wbf©ikxj n‡jI,
†gvjvwjwU bq †Kb? 2
N. B I C Gi K¨vwbRv‡iv I A¨vjWj Nbxfeb wewµqvi
M. Y †hŠ‡Mi bvB‡Uªk‡b cÖvß Drcv` Kvw•ÿZ Drcv`
cÖwZ GKB iæc AvPiY K‡i bv- Dw³wUi e¨vcv‡i
n‡Z wfbœ ai‡bi- e¨vL¨v Ki| 3
†Zvgvi gZvgZ we‡kølY Ki| 4 N. "X I Y †hŠ‡Mi wd«‡Wj µvdU A¨vjKvB‡jkb Ki‡j cÖwZ¯’vcK
2 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI : wfbœ Ae¯’v‡b hy³ nqÓ- Dw³wUi h_v_©Zv we‡kølY Ki| 4
(-) (+) 6 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI :
jeY †mZz Na2S2O3 0.2 M, 50 mL

XNO3 `ªeY YSO4 `ªeY

1M
25 °C
1.5 M
100 mL, 5g Zzu‡Z + KI

X I Y Gi cvigvYweK fi h_vµ‡g 56 63.5| K. wW-Kve©w·‡jkb wewµqv Kv‡K e‡j? 1

L. NH3 Ges H3C - NH2 Gi g‡a¨ †KvbwU AwaK
E°X2+/X = -0.44 V
ÿviagx©? †Kb? 2
E°Y2+/Y = + 0.34 V
M. DÏxc‡Ki UvB‡Uªk‡b AwZwi³ KI hy³ Kiv nq †Kb?
E°Z2+/Z = - 0.76 V
e¨vL¨v Ki| 3
K. U‡UvgvwiRg Kv‡K e‡j? 1 N. KwbK¨vj d¬v‡¯‹i A‡a©K AvqZb, ey¨‡i‡Ui m¤ú~Y©
L. CH3COCl n¨v‡jvdig wewµqv †`q bv †Kb? 2 `ªe‡Yi mv‡_ wewµqv K‡i| Avqb-B‡jKUªb c×wZ‡Z
M. DÏxc‡Ki X `ªeY‡K Z cv‡Î msiÿY Ki m¤¢e mgZvKiYc~e©K wewµqvwU‡Z Av‡qvwWwgwZ I
wKbv- e¨vL¨v Ki| 3 Av‡qv‡WvwgwZ N‡U‡Q wKbv we‡kølY Ki| 4
N. DÏxc‡Ki †Kv‡li emf gvb wbY©q Ki| 4 7 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI :
3 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI :

GK ÿviKxq A¤ø wØ-ÿviKxq A¤ø wÎ-ÿviKxq A¤ø wØ-A¤øxq ÿvi

10 ml 20 ml 30 ml 40 ml
0.1 M 0.2 M 0.3 M 0.4 M K. jeY †mZz Kv‡K e‡j? 1
A B C D L. A¨vwmwUK GwmW A‡cÿv †K¬v‡iv A¨vwmwUK GwmW
K. Zwor ivmvqwbK Zzj¨vsK Kv‡K e‡j? 1 AwaK kw³kvjx †Kb? 2
L. A¨vivBj n¨vjvBW Zzjbvg~jK wbw®µq †Kb? 2 M. 2bs cv‡Î wgwkÖZ M¨v‡mi Pvc KZ? 3
M. A, B I C cv‡Îi wgwjZ `ªe‡Yi pH wbY©q Ki| 3 N. Dc‡iv³ †ÿ‡Î (A + B) n‡Z B †K mwi‡q wb‡j M¨v‡mi
†gvU Pv‡ci Dci †Kvb cÖfve co‡e wK? we‡kølY Ki| 4
N. A, B I C cv‡Îi wgwjZ `ªe‡Yi mv‡_ D `ªe‡Yi UvB‡Uªk‡b
8 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI :
Dchy³ wb‡`©kK Kx? †Zvgvi gZvgZ we‡kølY Ki| 4
4 } wb‡Pi DÏxcKwU co Ges wb¤œwjwLZ cÖkœ¸‡jvi DËi `vI :
Y A
2.0 B C
D
E
1.0 P K. AvB‡mv‡Kvi Kv‡K e‡j? 1
PV
L. wb‡`©k‡Ki eY© cwieZ©‡bi KviY we‡kølY Ki| 2
O
200 400 600 800 1000
X M. X, Y I Z Gi †K›`ªvKlx© ms‡hvRb wewµqvi cÖwZ
P (atm) mwµqZvi µg we‡kølY Ki| 3
K. nv‡K‡ji bxwZwU Kx? 1 N. X, Y I Z †K RviY c×wZ‡Z cv_©K¨KiY m¤¢e-
L. †`LvI †h, Sn RviK I weRviK Dfqiƒ‡cB KvR K‡i| 2
2+
†Zvgvi gZvgZ we‡kølY Ki| 4
70

G·K¬wz mf g‡Wj †U÷ 05 welq †KvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50
[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]
1 } wb‡Pi Z_¨¸‡jv jÿ¨ Ki Ges cÖk¸
œ ‡jvi DËi `vI : M. A cv‡Î wK cwigvY cvwb wgwkÖZ Ki‡j `ªe‡Yi
1 atm NbgvÎv †mwg‡gvjvi n‡e? 3
(i) 27 ºC wØZxq cvÎ cÖ_g cv‡Îi N. A I B `ªeY GK‡Î wgwkÖZ Ki‡j wgkÖ‡Yi pH KZ
32 g 400 K AvqZ‡bi 3/8 ¸Y| n‡e MvwYwZK we‡kølY Ki| 4
CO2
(A) (B)
5 } wb‡Pi Z_¨¸‡jv jÿ Ki Ges cÖk¸ œ ‡jvi DËi `vI :
20 mL 0.1 M 10 mL A¤øxq A¤øxq
(ii) X gas Y gas
H2C2O4 KMnO4 FeSO4
22 g 8g
22.4 L 11.20 L (i) (ii) (iii)
25 ºC 25 ºC K. RviY gvb Kx? 1
K. COD Kx? 1 L. Na2CO3 †K cÖvBgvix ÷¨vÛvW© c`v_© ejv nq †Kb? 2
L. C.G.S GK‡K R Gi gvb wbY©q Ki| 2 M. i I ii bs ivmvqwbK c`v_©Ø‡qi wewµqvi Avqb
M. A cv‡Îi M¨vm‡K B cv‡Î wb‡j ewn®‹Z … M¨v‡mi fi B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
KZ n‡e MYbv Ki| 3 N. i I ii bs `ªeY Øviv iii bs `ªe‡Yi Fe Gi cwigvY
N. DÏxcK (ii) Gi M¨vmØ‡qi †ÿ‡Î wb‡Pi †Kvb kZ©wU wbY©q Kiv hv‡e wK Zv we‡kølY Ki| 4
cÖ‡hvR¨ Zv MvwYwZK we‡kølY Ki| 6 } Mg3N2 + H2O ® Mg(OH)2 + A(g)
kZ© (i) rx > ry, (ii) ry > rx| 4 CaCO3 + M ® CaCl2 + B(g) + H2O
Abv`ª© ZnCl2 K. cigk~b¨ ZvcgvÎv Kx? 1
2 } (i) A + HCl ¾¾¾¾¾¾® AwZ`ªæZ mv`v Aat‡ÿc (B)
P L. ev¯Íe M¨v‡mi Pvc Av`k© M¨vm A‡cÿv Kg †Kb? 2
(ii) CH3 - C = CH2 + O3 ® I‡RvbvBW Zn M. M I A †hŠ‡Mi wewµqvi mvnv‡h¨ AbyeÜx e¨vL¨v Ki| 3
| H2O Q (AvYweK fi †ewk)
CH3 N. A I B †hŠMØq GwmW I ÿv‡ii †h gZev` mg_©b
K. Kvh©Kix g~jK Kx? 1 K‡i Zv Dchy³ wewµqv w`‡q we‡kølY Ki| 4
L. C6H5NH2 A‡cÿv CH3NH2 Zxeª ÿvi †Kb? e¨vL¨v Ki| 2 7 } (i) Fe(s) | Fe2+ (0.2 M) || H+(0.1 M) | H2(0.5 atm)Pt
M. P I Q Gi g‡a¨ cv_©K¨m~PK wewµqv wj‡L kbv³ Ki| 3 E°Fe/Fe3+ = 0.44 V
N. B †hŠ‡Mi mv‡_ KOH(alc) Ges KOH(aq) Gi wewµqvi (ii)
wfbœ wfbœ Drcv` cvIqvi †KŠkj we‡kølY Ki| 4 V (K)
E°A2+/A = - 2.78 V
3 } (i) C6H5 - MgCl + H2O ® A + Mg(OH)Cl E°B/B2+ = 0.271 V
HNO3 Cl2 A B
C ¬¾¾¾ A ¾¾¾® B
H2SO4 FeCl3 ASO4 0.02 M BSO4 0.05 M

KMnO4 + KOH K. d¨viv‡Wi m~ÎwU wee„wZ Ki| 1

(ii) X + [O] ¾¾¾¾¾¾®
L. jeY †mZzi f‚wgKv e¨vL¨v Ki| 2
K. jyKvm weKviK Kx? 1 M. i bs †KvlwUi Zwo”PvjK e‡ji gvb wbY©q Ki| 3
L. mvB‡Rd wbqgwU e¨vL¨v Ki| 2 N. DÏxc‡Ki ASO4 `ªeY B cv‡Î Ges BSO4 `ªeY A
M. X †hŠ‡Mi cÖK…wZ e¨vL¨v Ki| 3 cv‡Î ivLv †KvbwU hyw³ hy³ n‡e Zv we‡kølY Ki| 4
N. B I C †hŠ‡Mi ˆewkó¨c~Y© wewµqv †KvbwU mn‡RB 8 } wb‡Pi Z_¨¸‡jv jÿ¨ Ki|
w`‡e we‡kølY Ki| 4
4 } wb‡Pi Z_¨¸‡jv jÿ Ki Ges cÖk¸ œ ‡jvi DËi `vI :
w
2% æ ö
1.0 ´ 106 ppm èn ø K. gy³ g~jK Kx? 1
H2SO4 500 mL L. NaOH I CH3COOH UvB‡Uªk‡b †Kvb wb‡`©kK
500 mL NaOH Dchy³ e¨vL¨v Ki| 2
A B M. P †hŠM †_‡K †Kvb †÷wiI m¤¢e wK-bv Zv wj‡L kZ©
K. †gvjvwiwU Kx? 1 D‡jøL Ki| 3
L. 0.5 M Na2CO3 `ªe‡Yi NbgvÎv‡K kZKiv GK‡K N. DÏxc‡Ki wewµqvq P I Q Drcv‡`i kZKiv
cÖKvk Ki| 2 cwigv‡Yi wfbœZvi KviY we‡kølY Ki| 4
71

G·K¬wz mf g‡Wj †U÷ 06 welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. †Kvb †hŠM A¨vjWj Nbxfeb wewµqv 9. †Kvb wewµqvq Kve©wbj g~jK wgw_wjb wb‡Pi †KvbwU mwVK?
†`q? g~j‡K cwiewZ©Z nq? K i I ii L ii I iii
K CH3CH2CHO L Cl3CCHO K DU©R wewµqv M i I iii N i, ii I iii
M HCHO N C6H5CHO L wd«‡Wj-µvdU wewµqv 18. MwjZ AlCl3 Gi g‡a¨ KZ d¨viv‡W
2. ndg¨vb wW‡MÖ‡Wk‡b Drcbœ nq? M wWKve©w·‡jkb wewµqv Zwor cÖevwnZ Ki‡j K¨v‡_v‡W 54 g
K cÖvBgvix A¨vwgb N wK¬‡gbkb weRviY
Al mwÂZ n‡e?
L †m‡KÛvix A¨vwgb 10. UjyBb evqy Ges V2O5 Øviv 500 °C K 1.0 L 3.0
M GwmW GgvBW ZvcgvÎvq RvwiZ Ki‡j Kx ˆZwi nq? M 6.0 N 9.0
N Uviwmqvix A¨vwgb K †ebwRb 19. †Kvb AvqbwU K¨v‡_v‡W mevi Av‡M
3. Mvp HCl I Abv`ª© ZnCl2 Gi `ªeY‡K L †eb‡RvwqK GwmW
PvR©g³
y n‡e?
Kx ejv nq? M †dbj
K Ni2+ L Cu2+
K U‡jb weKviK N †ebRvjwWnvBW M Zn2+ N Na+
L wMÖMbvW© weKviK n 0.3 g Acwi‡kvwaZ H2O2 Gi `ªeY 20. OH- Gi AbyeÜx ÿvi †KvbwU?
M jyKvm weKviK H2SO4 Gi Dcw¯’wZ‡Z 0.5 g KMnO4 K O2- L H2O
N wkd weKviK Gi mv‡_ m¤ú~Yi© ƒ‡c wewµqv K‡i| M H3O N O2
4. (CH3)3C - Cl †hŠMwUi bvg Kx? Dc‡ii Z‡_ï wfwË‡Z 11 I 12 bs 21. evqygÐ‡ji †Uªm Dcv`vb †KvbwU?
i. Uviwmqvix weDUvBj †K¬vivBW cÖ‡kœi DËi `vI| K CO2 L N2O
ii. 2-†K¬v‡iv-2-wg_vBj †cÖv‡cb 11. H2O2 Gi weï×Zv KZ? M AvM©b N Rjxq ev®ú
iii. 1, 1-WvB wg_vBj-1-†K¬v‡iv B‡_b K 80.63% L 85.85% 22. 4.4 g CO2 G AYymsL¨v KZ?
wb‡Pi †KvbwU mwVK? M 89.69% N 92.93%
K 6.023 ´ 1023 L 6.023 ´ 1022
K i I ii L ii I iii
12. Drcvw`Z O2 Gi AvqZb 27°C
M 6.023 ´ 1024 N 3.011 ´ 1023
ZvcgvÎvq I 90 kPa Pv‡c KZ n‡e?
M i I iii N i, ii I iii ZvcgvÎvq 25 mL AvqZ‡bi
30 °C
K 138.564 dm3 L 238.645 dm3 n
5. †Kvb g~jKwU †gUv wb‡`©kK? M 148.460 dm3 N 248.645 dm3 GKwU wmwjÛv‡i 8.0 g He (A) M¨vm
i. - NO2 13. U‡jb weKvi‡Ki mv‡_ wewµqv K‡i Ges 48.0 g CH4(B) M¨vm ivLv Av‡Q|
ii. - COOH
iii. - Cl
bv- DÏxc‡Ki Av‡jv‡K 23 I 24 bs
K HCHO L CH3COOH cÖ‡kœi DËi `vI|
wb‡Pi †KvbwU mwVK?
M C6H5CHO N HCOOH
K i I ii L ii I iii 23. cv‡Î B M¨v‡mi AvswkK Pvc KZ atm
14. Ca ® Ca+2 + 2e GB wewµqvwU‡Z-
M i I iii N i, ii I iii n‡e?
K 193000 C we`y¨r Drcbœ n‡q‡Q
6. †KvbwU B‡jK‡UªvdvBj? K 5.319 L 2.985
L 193000 C we`y¨r eën„Z n‡q‡Q
i. FeCl3 M 5.112 N 4.930
M 96500 C we`y¨r eën„Z n‡q‡Q
ii. AlCl3 24. A M¨vm m¤ú‡K© wb‡¤œi †Kvb Z_¨
iii. BCl3 N 96500 C we`y¨r Drcbœ n‡q‡Q
mwVK?
wb‡Pi †KvbwU mwVK? 15. 12% Na2CO3 `ªe‡Yi NbgvÎv
i. GwU GKwU wØ-cigvYyK wbw®µq
K i I ii L ii I iii †gvjvwiwU‡Z-
K 1.13 L 1.31
M¨vm
M i I iii N i, ii I iii
M 0.11 N 1.20 ii. AYymg~‡ni MwZkw³ 7.557 kJ
7. †mvwWqvg †eb‡Rv‡qU I †mvWvjvB‡gi 16. Na2S2O3 + I2 ® Drcv`; GB iii. B Gi †P‡q A †K ZijxKiY Kiv
wewµqvq Kx Drcbœ nq? wewµqvi KwVb
K †dbj L †ebwRb K Na2S2O3 RviK wb‡Pi †KvbwU mwVK?
M †eb‡RvwqK GwmW L I2 Gi weRviY N‡U‡Q K i I ii L ii I iii
N †ebRvjwWnvBW M Av‡qvwW‡bi RviY gvb e„w× †c‡q‡Q
M i I iii N i, ii I iii
8. wb‡Pi †KvbwU AcÖwZmg A¨vjwKb? N S Gi RviY gvb n«vm †c‡q‡Q
K CH2 = CH2 25. 27 °C ZvcgvÎvq †Kvb M¨vmwUi RMS
17. cwievwnZvi GKK n‡jv- MwZ‡eM †ewk?
L ClCH = CHCl
i. mho
M CH2 = CH - CH3 K H2 L O2
ii. ohm-1
N CH3 - CH = CH - CH3 iii. siemens M N2 N Cl2
72

G·K¬wz mf g‡Wj †U÷ 07 welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. WHO Aby‡gvw`Z cvwb‡Z COD Gi n wb‡Pi DÏxc‡Ki Av‡jv‡K 12 I 13 19. RMgX + CO2 ® A ¾¾¾® H+/H2O
B; B
m‡e©v”P MÖnY‡hvM¨ gvÎv KZ? bs cÖ‡kœi DËi `vI : †hŠMwU Kx?
K 6 mg L-1 L 6.5 mg L-1
GKwU †Kv‡li †Kvl wewµqv- K cÖvBgvwi A¨vj‡Kvnj
M 9.2 mg L-1 N 10 mg L-1
Sn + I2 ¾® Sn2+ + 2I- L wK‡Uvb
2. cvwbi A¯’vqx ÿiZvi Rb¨ `vqx
12. †KvlwUi A¨v‡bv‡W msNwUZ wewµqv- M A¨vjwWnvBW N ˆRe GwmW
†KvbwU?
K SO42- L CO32- K Sn2+ + 2e- ® Sn 20. wb‡Pi †Kvb †hŠMwU n¨v‡jvdig wewµqv
M Cl- N HCO3- L Sn ® Sn2+ + 2e- †`q bv?
3. jyB‡mi gZev` Abymv‡i- M I2 + 2e- ® 2I- N 2I- ® I2 + 2e- K CH3CH(OH)CH3
L CH3CONH2
i. Al3+ GKwU GwmW 13. †KvlwUi †Kvl WvqvMÖvg n‡”Q-
M CH3CHO N CH3COCH3
ii. CN- GKwU ÿviK K Pt, 2I-/I2 // Sn2+/Sn
21. Bw_b I B_vB‡bi cv_©K¨ Ki‡Z
iii. SO3 GKwU ÿviK L Sn/Sn2+ // I2/2I-, Pt
wb‡Pi †KvbwU mwVK? M Sn/Sn2+ // 2I-/I2
e¨en„Z `ª eY-
K i I ii L ii I iii i. [Ag(NO3)2] NO3
N Pt, I2/2I- // Sn2+/Sn ii. [Cu(NH3)2]Cl
M i I iii N i, ii I iii 14. 1 †gvj Kcvi Avqb †_‡K
GK †gvj iii. Br2 + CCl4
4. eªb‡÷W jvDwi gZev` Abymv‡i- Kcvi avZz cÖ¯‘Z Ki‡Z we`y¨r wb‡Pi †KvbwU mwVK?
i. PH4+ GKwU A¤ø cÖ‡qvRb? K i I ii L ii I iii
ii. GwmW †cÖvUb `vZv K 1F L 2F M i I iii N i, ii I iii
iii. GwmW B‡jKUªb MÖnxZv M 3F N 4F 22. C4H2Cl Gi †Kvb mgvYy 100%
wb‡Pi †KvbwU mwVK? 15. 0.01 M Na2CO3 `ªeY- A¨vjwKb ˆZwi K‡i?
K i I ii L ii I iii
i. cÖvBgvwi ÷¨vÛvW© c`v‡_©i cÖgvY `ªeY K 1-†K¬v‡iv 2-wg_vBj †cÖv‡cb
M i I iii N i, ii I iii
ii. `ªeYwU GKwU †Wwm‡gvjvi `ªeY L 2-†K¬v‡iv 2-wg_vBj †cÖv‡cb
5. †KvbwU HSO4- Gi AbyeÜx ÿvi?
iii. 500 mL `ªe‡Y 5.3 g Na2CO3 M 2-†K¬v‡iv 2-wg_vBj weD‡Ub
K H2SO4 L H2S2O7
M SO42- N H3O+ `ªexf‚Z _v‡K N 1-†K¬v‡iv 2-wg_vBj weD‡Ub
6. †Kvb ZvcgvÎvq GKwU AYyi MwZkw³ wb‡Pi †KvbwU mwVK? 23. Av‡jvK mwµq †hŠM †KvbwU?
k~b¨ n‡e? K 2-wg_vBjweDUvb-1-Aj
K i I ii L ii I iii
K 0 °C L 273 °C L 2-wg_vBjweDUvb-2-Aj
M i I iii N i, ii I iii
M0K N 298 K M 2-wg_vBj‡c›Uvb-3-Aj
7. 1 atm = KZ c¨vm‡Kj? [we.`ª. : mwVK DËi (i)]
N 2-wg_vBj‡c›Uvb-2-Aj
K 1.01325 ´ 102 16. 2KMnO4 + 3H2 SO 4 + 5H 2C2 O4 ®
L 1.01325 ´ 10-1 2MnO4 + K 2SO4 + 10 CO2 n wb‡Pi DÏxc‡Ki Av‡jv‡K 24 I 25
M 1.01325 ´ 105 wewµqvwU‡Z- bs cÖ‡kœi DËi `vI :
N 1.01325 ´ 10-5 i. 2 AYy KMnO4 10wU B‡jKUªb CH3
|
8. †Kvb M¨v‡mi 3.2 g STP †Z 2.24 L MÖnY K‡i‡Q H2C = C - CH3 + HBr ¾® Z
AvqZb `Lj K‡i? ii. H2C2O4 G C Gi RviY gvb = + 3 Y
K H2 L N2 24. Z n‡jv-
M O2 N NH3 iii. H2SO4 GKwU Zxeª RviK
wb‡Pi †KvbwU mwVK? K 1-†eªv‡gv-2-wg_vBj †cÖv‡cb
9. w¯’i Pv‡c 0 °C ZvcgvÎvq O2 M¨v‡mi
K i I ii L ii I iii L 2-†eªv‡gv-2-wg_vBj †cÖv‡cb
AvqZb 3.5 L n‡j 20 °C ZvcgvÎvq
M i I iii N i, ii I iii M 1-†eªv‡gv-2-wg_vBj †cÖvwcb
M¨vmwUi AvqZb n‡e-
N 2-†eªv‡gv-2-wg_vBj †cÖvwcb
K 3.25 L L 3.76 L 17. cvi‡K¬vwiK Gwm‡Wi †K›`ªxq cigvYyi
M 7.0 L N 8.0 L RviY msL¨v KZ? 25. DÏxc‡Ki-
10. †KvbwU RviY-weRviY Aa©‡Kvl? K+1 L+3 i. wewµqvwU B‡jK‡UªvwcwjK
K Pt, Cl2/Cl- ii. Y Gi 2bs Kve©b sp2 msKwiZ
M+5 N+7
L Ag, AgCl(s)/Cl-
18. 0.15 M HCl `ªe‡Yi NbgvÎ ppm iii. Y †hŠMwU A¤øag©x
M Na, Hg/Na+ N Pt, Fe2+/Fe3+
11. †Kvb AvqbwU Av‡M PvR©gy³ n‡e? GK‡K KZ? wb‡Pi †KvbwU mwVK?
K Cu2+ L Fe2+ K 3.65 L 1500 K i I ii L ii I iii
M Na+ N Ag+ M 3650 N 5475 M i I iii N i, ii I iii
73

G·K¬wz mf g‡Wj †U÷ 08 welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. 0.1 M HCl `ªe‡Yi 10 mL †K wb‡Pi †KvbwU mwVK? 15. †KvbwU A¨v‡iv‡gwUK I mylg PvwµK
cÖkwgZ Ki‡Z 0.1 M Ca(OH)2 K i I ii L i I iii †hŠM?
`ªe‡Yi KZ mL jvM‡e? M ii I iii N i, ii I iii K b¨vc_vwjb L wdDivb
K 15 L 20 M wcwiwWb N _v‡qvwdb
M5 N 10
9. 1.032 g Aw·‡Rb I 0.573 g Kve©b-
16. †KvbwU †ebwRb ejq wbw®µqKvix
2. GKwU †mw›U‡gvjvi `ªe‡Yi NbgvÎv WvBA·vBW M¨vm wgkÖ‡Y Aw·‡Rb
g~jK?
KZ? †gvj fMœvsk KZ? K - CH3 L - NH2
K 1M L 0.1 M K 0.832 L 0.713 M - OH N - Cl
M 0.5 M N 0.01 M M 0.357 N 0.287
17. †KvbwU U‡jb `ªe‡Yi mv‡_ wewµqv
3. B‡jK‡UªvdvBj n‡jv- 10. GwmW e„wói †ejvq Aat‡ÿcY e„wó‡Z K‡i Ag Gi `c©Y ˆZwi K‡i?
i. AlCl3
pH Gi gvb KZ n‡Z cv‡i? K wf‡bMvi L diwgK GwmW
ii. BF3
iii. PH3 K 5.3 L 5.6 M weDUvBb-2 N †cÖvcv‡bvb
wb‡Pi †KvbwU mwVK? M 6.5 N 6.9 18. FeSO4 Gi g‡a¨ 500 mA Zwor 10
K i I ii L i I iii 11. 0.1 M HNO3 `ªe‡Yi NbgvÎv ppm min Pvjbv Ki‡j K¨v‡_v‡W Kx cwigvY
M ii I iii N i, ii I iii GK‡K KZ? Avqib Rgv n‡e?
4. †gvjvj `ªe‡Yi †ÿ‡Î cÖ‡hvR¨- K 0.0344 g L 0.0404 g
K 6300 L 63000
M 0.0578 g N 0.0868 g
i. GwU ZvcgvÎv wbf©ikxj `ªeY bq M 6500 N 65000
19. wg_vBj †iW A¤øxq gva¨‡g †Kvb eY©
ii. 1L `ªe‡Y 1 †gvj `ªe `ªexf‚Z _v‡K 12. Abv`ª© wRsK †K¬vivBW I Mvp HCl Gi
iii. 1000 g `ªve‡K 1 †gvj `ªe `ªexf‚Z
cÖ`k©b K‡i?
wgkÖY‡K Kx ejv nq? K jvj L njy`
_v‡K
K jyKvm weKviK M Kgjv N †Mvjvcx
wb‡Pi †KvbwU mwVK?
L wMÖMbvW© weKviK 20. †KvbwU me©c_Ö g PvR©g³
y n‡e?
K i I ii L i I iii
M †mv‡qURvi weKviK K Al3+ L Cu2+
M ii I iii N i, ii I iii
M Ag+ N Sn4+
5. STP †Z †Kvb M¨v‡mi †gvjvi AvqZb N U‡jb weKviK
21. wmjfv‡ii Zwor ivmvqwbK Zzj¨vsK
KZ? 13. CH3NH2 ÿviagx©| KviY- KZ g/C?
K 22.4 L L 24.789 L
i. gy³‡Rvo B‡jKUªb `vZv K 0.001118 L 0.000329
M 42.2 L N 74.4 L
ii. †cÖvUb `vZv M 0.000104 N 0.000965
6. mgNbgvÎv I mgAvqZ‡bi MOH
iii. Gwm‡Wi mv‡_ wewµqv K‡i
22. Pv‡ci mv‡_ AvqZb cwieZ©bkxj
Ges H2A `ªe‡Yi cÖK…wZ Kx n‡e?
†KvbwU‡Z?
K A¤øxq L ÿvixq wb‡Pi †KvbwU mwVK?
K e‡q‡ji m~Î L Pvj©‡mi m~Î
M wbi‡cÿ N Dfagx© K i I ii L i I iii
M Wvë‡bi AvswkK Pvc m~Î
n wb‡Pi Z‡_¨i Av‡jv‡K 7 I 8 bs M ii I iii N i, ii I iii N MÖvnv‡gi e¨vcb m~Î
cÖ‡kœi DËi `vI : 14. 2% HgSO4 Ges 20% H2SO4 Gi 23. SATP †Z 1L M¨v‡mi fi 2.8656 g
†Kvl ms‡KZ : Zn/Zn2+ || Cu2+/Cu
Dcw¯’wZ‡Z †cÖvcvB‡bi Av`ª©we‡køl‡Y n‡j M¨vmwU-
E°Zn/Zn2+ = + 0.76 V Ges E°Cu/Cu2+ = - 0.34 V
cÖvß †hŠ‡Mi cybwe©b¨v‡mi d‡j A †hŠM K H2 L O2
7. DÏxcK †Kv‡li Zwo”PvjK e‡ji gvb M N2 N Cl2
KZ? cvIqv hvq| A †hŠMwU-
24. mKj Av`k© M¨v‡mi Rb¨-
K + 1.10 V L + 0.42 V i. Av‡qv‡Wvdig MVb K‡i
KZ=0 L Z<1
M - 1.10 V N - 0.42 V ii. †dnwjs `ªeY cixÿv †`q bv MZ>1 NZ=1
8. cÖ`Ë †Kv‡li †ÿ‡Î- iii. A¨vjWj Nbxfeb wewµqv †`q 25. †KvbwU AcÖwZmg A¨vjwKb?
i. Zn `Ð A¨v‡bvW wn‡m‡e wµqv K‡i K CH2 = CH2
wb‡Pi †KvbwU mwVK?
ii. Cu avZz Zn Gi †P‡q Kg mwµq L CH3 - CH = CH - CH3
K i I ii L i I iii
iii. Cu avZzi cv‡Î Zn2+ Gi `ªeY M CH2 = CH -CH3
ivLv hv‡e M ii I iii N i, ii I iii N Cl - CH = CH - Cl
74

G·K¬wz mf g‡Wj †U÷ 09 welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. cÖvBgvwi ÷¨vÛvW© c`v_© †KvbwU? 9. wb‡Pi †jLwPÎwU M¨v‡mi †Kvb m~Î 17. bvBUªvB‡ji Kvh©Kix g~jK †KvbwU?
K H2SO4 L HCl AbymiY K‡i? K - NO2 L - NC
M KMnO4 N K2Cr2O7 V M - CN N - NH2
2. wg_vBj A‡i‡Äi pH cwieZ©‡bi P ® w¯’i 18. ZvcgvÎv aªæe _v‡K-
O
cwimi KZ? t°C
i. e‡q‡ji m~‡Î
K 7 - 10 L3-5 K e‡q‡ji m~Î ii. Pvj©‡mi m~‡Î
M 5-8 N 10 - 12 L Pvj©‡mi m~Î iii. A¨v‡fv‡M‡Wªvi m~‡Î
n wb‡Pi DÏxcKwU co Ges 3 I 4 bs M MÖvnv‡gi m~Î wb‡Pi †KvbwU mwVK?
cÖ‡kœi DËi `vI : N Wvë‡bi AvswkK Pvc m~Î K i I ii L i I iii
2H2O + HCl F H3O+ + B 10. SATP †Z GKwU M¨v‡mi ZvcgvÎv M ii I iii N i, ii I iii
3. B †KvbwU? KZ? 19. A¨vwjd¨vwUK †hŠM †KvbwU?
K Cl- L Cl
K 25 °C L 27 °C K Bw_wjb A·vBW L A¨vwbwjb
M Cl+ N Cl2
M0K N - 273 M UjyBb N †dbj
4. H3O+ n‡jv- 11. OH- Avq‡bi AbyeÜx A¤ø †KvbwU?
20. 32 g O2 n‡jv-
i. AbyeÜx A¤ø K O2- L H2O
i. 1 †gvj O2
ii. H2O Gi AbyeÜx ÿviK M H3O+ N OH
ii. STP †Z 24.8 L AvqZb
iii. †cÖvUb `v‡b mÿg 12. Zwor we‡køl‡Yi mgq †Kvb AvqbwU
iii. AYyi A¨v‡fv‡M‡Wªvi msL¨vi mgvb
wb‡Pi †KvbwU mwVK? cÖ_g PvR©g³
y n‡e?
wb‡Pi †KvbwU mwVK?
K i I ii L i I iii K NO3- L Cl-
K i I ii L i I iii
M ii I iii N i, ii I iii M SO42- N OH-
M ii I iii N i, ii I iii
5. †Wwm‡gvjvi `ªe‡Yi NbgvÎv †KvbwU? 13. cÖgvY nvB‡Wªv‡Rb ZworØvi †KvbwU?
K + 0.30 V L + 0.0V 21. 27 °C ZvcgvÎvq 4.4g CO2 M¨v‡mi
K 1M L 0.1 M
M 0.5 M N 0.001 M M + 0.10 V N + 0.20V Mo MwZkw³ KZ?
6. R - CH2Br + KOH(aq) ® 14. wjUvi-evqygÐjxq Pvc GK‡K R (L K 3.69 J L 374.13 J

Product; GB wewµqvi †gKvwbRg atm K-1 mol-1) Gi gvb KZ? M 369 KJ N 374.13 kg

†KvbwU? K 0.0821 L 0.821 22. Na2S2O3 †hŠ‡Mi †Kw›`ªq cigvYyi

K B‡jK‡UªvwdwjK cÖwZ¯’vcb M 8.314 N 8.314´ 107 RviY msL¨v KZ?

15. †Kvb gZev` Abymv‡i NH3 GKwU K-2 L - 2.5
L AcmviY
M+2 N + 2.5
M wbDwK¬IwdwjK cÖwZ¯’vcb ÿviK?
23. A_©-c¨viv wb‡`©kK g~jK †KvbwU?
N B‡jK‡UªvwdwjK ms‡hvRb i. Avi‡nwbqvm
K - NO2 L - NH2
7. 500 mL †Wwm‡gvjvi `ªe‡Y KZ MÖvg ii. eªb‡÷W-jvDwi
M - COOH N - CHO
Na2CO3 `ªexf‚Z nq? iii. jyBm
24. wb‡Pi †KvbwU B‡jK‡UªvdvBj?
K 3.3 g L 5.3 g wb‡Pi †KvbwU mwVK?
K SO3 L NH3
M 4.3 g N 6.3 g K i I ii L i I iii M RMgX N H2O
8. †Kvb †gŠjwU HCl †_‡K nvB‡Wªv‡Rb‡K M ii I iii N i, ii I iii 25. 0.15 M HCl `ªe‡Yi NbgvÎv ppm
cÖwZ¯’vwcZ Ki‡Z cv‡i? 16. jyBm GwmW †KvbwU? GK‡K KZ?
K Cu L Sn K NH3 L R - NH2 K 3.65 L 1500
M Hg N Ag M PH3 N BF3 M 3650 N 5475
75

G·K¬wz mf g‡Wj †U÷ 10 welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25
[we. `ª. : mieivnK…Z eûwbe©v Pwb Afxÿvi DËic‡Î cÖ‡kœ i µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m sewjZ e„Ëmg~ n n‡Z mwVK/m‡e©vrK… ó DË‡ii e„ ËwU ej c‡q›U Kjg Øviv m¤ú~ Y© fivU Ki|]
1. jyBm A‡¤øi D`vniY n‡jv- wb‡Pi †KvbwU mwVK? 17. IO3- + 5l- + 6H+ ® 3I2 + 3H2O;
K H2SO4 L H2O K i I ii L i I iii GLv‡b †KvbwUi RviY N‡U‡Q?
M AlCl3 N NH3- M ii I iii N i, ii I iii K IO3- L I-
2. PH3 + HCl F PH4- + Cl-, GB 10. DÏxc‡Ki B †hŠM CH CH COCH M I2 N H+
3 2 3
wewµqvq AbyeÜx ÿvi †KvbwU? n‡j g~j wewµq‡Ki bvg Kx? n wb‡Pi DÏxcKwU c‡o 18 I 19 bs
K PH3 L HCl cÖ‡kœi DËi `vI :
K weDUvBb-1 L weDUvBb-2
M PH4+ N Cl-
M weDwUb-1 N weDwUb-2 Avqib (III) AÝvBW + HCl ® B + H2O
3. †Kvb Ae¯’vq ev¯Íe M¨vm e‡q‡ji m~Î (A)
†g‡b P‡j? 11. CH3 - CO - R + H2 ¾® B †hŠM,
Pt 18. A †hŠ‡Mi A¤øZ¡ KZ?
K wb¤œ ZvcgvÎvq GLv‡b B †hŠMwU n‡jv- K3 L4
L 0°C ZvcgvÎvq K A¨vjwKb M5 N6
M Kÿ ZvcgvÎvq L Kve©w·wjK GwmW 19. B †hŠ‡Mi Rjxq `ª
e ‡Yi cÖKw… Z Kxiƒc?
N D”P ZvcgvÎvq K A¤ø xq L ÿvixq
M A¨vj‡Kvnj
4. STD †Z 1.0 L M¨v‡mi fi 1.43 g M cÖkg N Dfagx©
N A¨vjwWnvBW
n‡j M¨vmwU n‡e †KvbwU?
12. 3 mL 0.1 M Kw÷K †mvWvi `ªe‡Y 1 20. 1F we`y¨r Øviv †Kv‡bv avZzi Avqb
K H2 L O2
M N2 N Cl2 mL 0.3 M Kw÷K †mvWv `ªeY †hvM K¨v‡_v‡W AwaK cwigvY mwÂZ n‡e?
Kiv n‡jv| wgwkÖZ `ªe‡Yi NbgvÎv K Al L Zn
5. Gwm‡Wi ZxeªZvi †ÿ‡Î-
MK N Ca
i. H2SO4 > HNO2 ppm GK‡K KZ n‡e?
ii. H2SO4 > HClO4 K 4000 L 6000 21. NaCl Gi Rjxq `ªe‡Yi Zwor
iii. HNO3 > H2SO3 M 8000 N 12000 we‡køl‡Y †KvbwU Drcbœ nq bv?
wb‡Pi †KvbwU mwVK? 13. mg AvqZ‡bi 0.1 M KOH `ªeY I K Na L Cl2
K i I ii L i I iii H2SO4 `ªe‡Yi wgkÖ‡Yi cÖKw… Z Kx iƒc M NaOH N H2
M ii I iii N i, ii I iii
n‡e? 22. B‡jKUª b xq Zwor cwievnx †KvbwU?
6. A¨vwbwj‡b Sigma eÜ‡bi msL¨v KqwU? K FeSO4 `ªeY L NaCl (MwjZ)
K Dfagx© L wbi‡cÿ
K6 L8 M Cu avZz N CuSO4 `ªeY
M A¤øxq N ÿvixq
M 12 N 14
14. †KvbwU‡Z Kve©‡bi RviY msL¨v I 23. A , B I C Avq‡bi `ªe‡Y
+ 2+ 3+

†hvRbx mgvb? c„_Kfv‡e 1.0 F we`y¨r Pvjbv Ki‡j-
O
|| | K C2H6 L CHCl3 i. 1 mol A+ PvR© gy³ n‡e
K - C - OH L - CH - OH
M CCl4 N CH2Cl2 ii. 2 mol B K¨v‡_v‡W Rgv n‡e
|
M = CH - OH N - CH2OH 15. cÖgvY KMnO4 `ªe‡Yi mvnv‡h¨ Fe(II) 1
iii. mol C3+ `ªeY n‡Z ZworØv‡i
8. CH3COCH3 Gi U‡Uvgvi †KvbwU? Avq‡bi cwigvY wba©vi‡Y wb‡`©kK 3
K CH2 = CH(OH) - CH3 wnmv‡e †KvbwU KvR K‡i? mwÂZ n‡e
L CH3CH = CHOH K KMnO4 wb‡Pi †KvbwU mwVK?
M CH3 - C(OH) = CH2 L wg_vBj A‡iÄ K i I ii L i I iii
N CH2 = CH - CHO ii I iii i, ii I iii
M †dbjd_¨vwjb M N
n wb‡Pi DÏxcKwU co Ges 9 I 10 bs N Avqib (II) `ªeY 24. H2(g) + Cu (aq) ® 2H+(aq) + Cu(s)
2+

cÖ‡kœi DËi `vI : †Kv‡l A¨v‡bv‡W †Kvb wewµqv N‡U?

2% Hg 2+ 16. A ® G
R - C º C - H ¾¾¾¾® 'A' 2K 2H+ + 2e- ® H
20% H2SO4 B ® 25 g H2SO4 250 mL G `ªexf‚Z
L Cu ® Cu2+ + 2e-
c~Yw© eb¨vm Av‡Q A I B `ªe‡Yi wgkÖ‡Y Df‡qi-
¾¾¾¾® 'B' M Cu2+ + 2e- ® Cu
(g~j wewµqK) 20% H2SO4 i. NbgvÎv mgvb N H2 ® 2H+ + 2e-
9. DÏxc‡Ki- ii. †m‡KÛvwi cÖgvY `ªeY 25. †µvwgqvg mvj‡dU `ªe‡Y 3F we`y¨r
i. A †hŠMwU‡Z sp2 Ges sp3 msKwiZ iii. NbgvÎv ZvcgvÎv e„w×‡Z K‡g Øviv K¨v‡_v‡W KZ MÖvg Cr Rgv n‡e?
Kve©b Av‡Q wb‡Pi †KvbwU mwVK? [Cr Gi cvigvYweK fi = 52].
ii. B †hŠMwU Av‡qv‡Wvdg© MVb K‡i K i I ii L i I iii K 17.33 g L 52.0 g
iii. B †hŠMwU RvwiZ n‡q GwmW Drcbœ K‡i M ii I iii N i, ii I iii M 104 g N 156 g
76

†evW© cixÿvi cÖkœc‡Îi DËigvjv } m„Rbkxj
DËim~Î : HSC m„Rbkxj imvqb wØZxq cÎ MADE EASY to TEST PAPERS eB‡qi ...
XvKv †evW© 2023
1 } 355 c„ôvi 1 bs cÖkœ I DËi 4 } 459 c„ôvi 1 bs cÖkœ I DËi 7 } 550 c„ôvi 7 bs cÖkœ I DËi
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77

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1 } 367 c„ôvi 21 bs cÖkœ I DËi 4 } 447 c„ôvi 31 bs cÖkœ I DËi 7 } 561 c„ôvi 22 bs cÖkœ I DËi
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2 } 449 c„ôvi 33 bs cÖkœ I DËi 5 } 626 c„ôvi 13 bs cÖkœ I DËi 8 } 450 c„ôvi 35 bs cÖkœ I DËi
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XvKv †evW© 2023
1 M 2 L 3 N 4 L 5 M 6 L 7 N 8 M 9 N 10 M 11 K 12 L 13 N
14 N 15 L 16 K 17 L 18 K 19 L 20 M 21 N 22 L 23 K 24 N 25 L
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Kzwgjøv †evW© 2023
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PÆMÖvg †evW© 2023
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14 L 15 K 16 K 17 L 18 M 19 K 20 M 21 M 22 M 23 K 24 M 25 L
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kxl©¯’vbxq K‡jRmg~‡ni cÖkœc‡Îi DËigvjv } m„Rbkxj
DËim~Î : HSC m„Rbkxj imvqb wØZxq cÎ MADE EASY to TEST PAPERS eB‡qi ...
wgR©vcyi K¨v‡WU K‡jR, Uv½vBj
1 } 391 c„ôvi 65bs cÖkœ I DËi 4 } 485 c„ôvi 85bs cÖkœ I DËi 7 } 584 c„ôvi 63bs cÖkœ I DËi
2 } 651 c„ôvi 54bs cÖkœ I DËi 5 } 485 c„ôvi 86bs cÖkœ I DËi 8 } 486 c„ôvi 87bs cÖkœ I DËi
3 } 392 c„ôvi 66bs cÖkœ I DËi 6 } 583 c„ôvi 62bs cÖkœ I DËi

ivRkvnx K¨v‡WU K‡jR

1 } 393 c„ôvi 69 bs cÖkœ I DËi 4 } 488 c„ôvi 90 bs cÖkœ I DËi 7 } 585 c„ôvi 66 bs cÖkœ I DËi
2 } 394 c„ôvi 70 bs cÖkœ I DËi 5 } 489 c„ôvi 91 bs cÖkœ I DËi 8 } 586 c„ôvi 67 bs cÖkœ I DËi
3 } 652 c„ôvi 57 bs cÖkœ I DËi 6 } 489 c„ôvi 92 bs cÖkœ I DËi

†dŠR`vinvU K¨v‡WU K‡jR, PÆMÖvg

1 } 397 c„ôvi 76 bs cÖkœ I DËi 4 } 587 c„ôvi 70 bs cÖkœ I DËi 7 } 654 c„ôvi 60 bs cÖkœ I DËi
2 } 494 c„ôvi 101 bs cÖkœ I DËi 5 } 495 c„ôvi 102 bs cÖkœ I DËi 8 } 588 c„ôvi 71 bs cÖkœ I DËi
3 } 397 c„ôvi 77 bs cÖkœ I DËi 6 } 654 c„ôvi 59 bs cÖkœ I DËi

wm‡jU K¨v‡WU K‡jR

1 } 398 c„ôvi 78 bs cÖkœ I DËi 4 } 497 c„ôvi 104 bs cÖkœ I DËi 7 } 588 c„ôvi 72 bs cÖkœ I DËi
2 } 398 c„ôvi 79 bs cÖkœ I DËi 5 } 498 c„ôvi 105 bs cÖkœ I DËi 8 } 589 c„ôvi 73 bs cÖkœ I DËi
3 } 496 c„ôvi 103 bs cÖkœ I DËi 6 } 655 c„ôvi 61 bs cÖkœ I DËi

bUi †Wg K‡jR, XvKv

1 } 400 c„ôvi 83bs cÖkœ I DËi 4 } 590 c„ôvi 76bs cÖkœ I DËi 7 } 501 c„ôvi 110bs cÖkœ I DËi
2 } 500 c„ôvi 108bs cÖkœ I DËi 5 } 501 c„ôvi 109bs cÖkœ I DËi 8 } 656 c„ôvi 63bs cÖkœ I DËi
3 } 401 c„ôvi 84bs cÖkœ I DËi 6 } 591 c„ôvi 77bs cÖkœ I DËi
wfKviæbwbmv b~b K‡jR, XvKv
1 } 502 c„ôvi 111bs cÖkœ I DËi 4 } 592 c„ôvi 79bs cÖkœ I DËi 7 } 504 c„ôvi 114bs cÖkœ I DËi
2 } 592 c„ôvi 78bs cÖkœ I DËi 5 } 503 c„ôvi 113bs cÖkœ I DËi 8 } 657 c„ôvi 64bs cÖkœ I DËi
3 } 502 c„ôvi 112bs cÖkœ I DËi 6 } 593 c„ôvi 80bs cÖkœ I DËi
80

AvBwWqvj ¯‹j
z A¨vÛ K‡jR, gwZwSj, XvKv
1 } 401 c„ôvi 85 bs cÖkœ I DËi 4 } 505 c„ôvi 116 bs cÖkœ I DËi 7 } 594 c„ôvi 82 bs cÖkœ I DËi
2 } 402 c„ôvi 86 bs cÖkœ I DËi 5 } 506 c„ôvi 117 bs cÖkœ I DËi 8 } 657 c„ôvi 65 bs cÖkœ I DËi
3 } 505 c„ôvi 115 bs cÖkœ I DËi 6 } 593 c„ôvi 81 bs cÖkœ I DËi

ivRDK DËiv g‡Wj K‡jR, XvKv

1 } 594 c„ôvi 83 bs cÖkœ I DËi 4 } 402 c„ôvi 87 bs cÖkœ I DËi 7 } 403 c„ôvi 88 bs cÖkœ I DËi
2 } 595 c„ôvi 84 bs cÖkœ I DËi 5 } 658 c„ôvi 66 bs cÖkœ I DËi 8 } 508 c„ôvi 120 bs cÖkœ I DËi
3 } 507 c„ôvi 118 bs cÖkœ I DËi 6 } 507 c„ôvi 119 bs cÖkœ I DËi

ivRkvnx K‡jR
1 } 515 c„ôvi 130bs cÖkœ I DËi 4 } 600 c„ôvi 92bs cÖkœ I DËi 7 } 407 c„ôvi 94bs cÖkœ I DËi
2 } 516 c„ôvi 131bs cÖkœ I DËi 5 } 661 c„ôvi 71bs cÖkœ I DËi 8 } 407 c„ôvi 95bs cÖkœ I DËi
3 } 599 c„ôvi 91bs cÖkœ I DËi 6 } 661 c„ôvi 72bs cÖkœ I DËi

1 } 410 c„ôvi 101 bs cÖkœ I DËi 4 } 523 c„ôvi 141 bs cÖkœ I DËi 7 } 605 c„ôvi 100 bs cÖkœ I DËi
2 } 411 c„ôvi 102 bs cÖkœ I DËi 5 } 524 c„ôvi 142 bs cÖkœ I DËi 8 } 665 c„ôvi 78 bs cÖkœ I DËi
3 } 523 c„ôvi 140 bs cÖkœ I DËi 6 } 604 c„ôvi 99 bs cÖkœ I DËi

miKvwi nvRx gynv¤§` gnwmb K‡jR, PÆMÖvg

1 } 415 c„ôvi 110 bs cÖkœ I DËi 4 } 534 c„ôvi 157 bs cÖkœ I DËi 7 } 668 c„ôvi 84 bs cÖkœ I DËi
2 } 416 c„ôvi 111 bs cÖkœ I DËi 5 } 609 c„ôvi 108 bs cÖkœ I DËi 8 } 669 c„ôvi 85 bs cÖkœ I DËi
3 } 533 c„ôvi 156 bs cÖkœ I DËi 6 } 610 c„ôvi 109 bs cÖkœ I DËi

Rvjvjvev` K¨v›Ub‡g›U cvewjK ¯‹j

z GÛ K‡jR, wm‡jU
1 } 417 c„ôvi 113 bs cÖkœ I DËi 4 } 536 c„ôvi 159 bs cÖkœ I DËi 7 } 611 c„ôvi 111 bs cÖkœ I DËi
2 } 417 c„ôvi 114 bs cÖkœ I DËi 5 } 536 c„ôvi 160 bs cÖkœ I DËi 8 } 669 c„ôvi 86 bs cÖkœ I DËi
3 } 535 c„ôvi 158 bs cÖkœ I DËi 6 } 610 c„ôvi 110 bs cÖkœ I DËi

K¨v›Ub‡g›U cvewjK ¯‹j

z I K‡jR, iscyi
1 } 422 c„ôvi 121 bs cÖkœ I DËi 4 } 615 c„ôvi 118 bs cÖkœ I DËi 7 } 673 c„ôvi 92 bs cÖkœ I DËi
2 } 543 c„ôvi 169 bs cÖkœ I DËi 5 } 544 c„ôvi 170 bs cÖkœ I DËi 8 } 616 c„ôvi 119 bs cÖkœ I DËi
3 } 672 c„ôvi 91 bs cÖkœ I DËi 6 } 545 c„ôvi 171 bs cÖkœ I DËi

wgR©vcyi K¨v‡WU K‡jR, Uv½vBj
1 M 2 M 3 N 4 M 5 L 6 K 7 L 8 L 9 M 10 K 11 M 12 M 13 N
14 K 15 K 16 N 17 M 18 L 19 K 20 L 21 N 22 K 23 N 24 M 25 K

1 L 2 K 3 L 4 N 5 K 6 L 7 N 8 N 9 M 10 N 11 M 12 K 13 L
14 L 15 K 16 M 17 K 18 M 19 L 20 N 21 N 22 K 23 M 24 L 25 K

wSbvB`n K¨v‡WU K‡jR

1 K 2 M 3 L 4 L 5 N 6 K 7 N 8 K 9 K 10 L 11 L 12 M 13 N
14 M 15 M 16 * 17 * 18 K 19 L 20 N 21 N 22 M 23 L 24 L 25 M

iscyi K¨v‡WU K‡jR

1 N 2 L 3 L 4 N 5 M 6 K 7 L 8 L 9 L 10 N 11 M 12 K 13 N
14 K 15 L 16 K 17 L 18 K 19 M 20 M 21 K 22 N 23 L 24 L 25 K
81

bUi †Wg K‡jR, XvKv

1 M 2 K 3 M 4 K 5 K 6 N 7 M 8 M 9 N 10 N 11 L 12 N 13 L
14 N 15 L 16 K 17 M 18 L 19 M 20 K 21 M 22 N 23 L 24 M 25 N

wfKviæbwbmv b~b K‡jR, XvKv

1 L 2 M 3 N 4 K 5 M 6 L 7 N 8 M 9 N 10 K 11 K 12 L 13 L
14 K 15 L 16 L 17 M 18 K 19 K 20 K 21 M 22 M 23 N 24 K 25 M

AvBwWqvj ¯‹zj A¨vÛ K‡jR, gwZwSj, XvKv

1 L 2 L 3 K 4 N 5 N 6 L 7 M 8 L 9 M 10 M 11 L 12 M 13 L
14 * 15 M 16 M 17 L 18 L 19 K 20 K 21 N 22 N 23 L 24 K 25 N

ivRDK DËiv g‡Wj K‡jR, XvKv

1 M 2 M 3 N 4 M 5 K 6 K 7 N 8 L 9 L 10 K 11 K 12 M 13 K
14 N 15 N 16 N 17 L 18 K 19 M 20 M 21 K 22 K 23 K 24 L 25 M

ivRkvnx K‡jR
1 M 2 L 3 L 4 K 5 L 6 K 7 L 8 L 9 N 10 L 11 K 12 N 13 M
14 K 15 M 16 M 17 N 18 N 19 N 20 N 21 N 22 K 23 N 24 M 25 L

we G Gd kvnxb K‡jR, h‡kvi

1 N 2 L 3 K 4 L 5 M 6 L 7 N 8 M 9 L 10 L 11 K 12 * 13 N
14 M 15 M 16 L 17 M 18 M 19 K 20 L 21 M 22 K 23 L 24 N 25 M

PÆMÖvg K‡jR
1 M 2 L 3 K 4 K 5 L 6 L 7 L 8 K 9 N 10 M 11 K 12 K 13 M
14 N 15 M 16 L 17 M 18 K 19 M 20 * 21 N 22 N 23 M 24 K 25 L

miKvwi ˆmq` nv‡Zg Avjx K‡jR, ewikvj

1 L 2 N 3 M 4 K 5 N 6 L 7 M 8 N 9 N 10 K 11 N 12 M 13 N
14 L 15 K 16 M 17 M 18 N 19 N 20 K 21 K 22 N 23 N 24 N 25 K

knx` ˆmq` bRiæj Bmjvg K‡jR, gqgbwmsn

1 L 2 M 3 N 4 K 5 * 6 K 7 M 8 N 9 N 10 K 11 L 12 M 13 N
14 M 15 L 16 K 17 K 18 K 19 N 20 M 21 N 22 N 23 N 24 K 25 N

G·K¬zwmf g‡Wj †U‡÷i DËigvjv

G·K¬zwmf g‡Wj †U‡÷i DËigvjv } m„Rbkxj
DËim~Î : HSC m„Rbkxj imvqb wØZxq cÎ MADE EASY to TEST PAPERS eB‡qi ...

G·K¬wz mf g‡Wj †U÷ 01

1 } 404 c„ôvi 89 bs cÖkœ I DËi 4 } 510 c„ôvi 122 bs cÖkœ I DËi 7 } 658 c„ôvi 67 bs cÖkœ I DËi
2 } 509 c„ôvi 121 bs cÖkœ I DËi 5 } 404 c„ôvi 90 bs cÖkœ I DËi 8 } 510 c„ôvi 123 bs cÖkœ I DËi
3 } 596 c„ôvi 85 bs cÖkœ I DËi 6 } 596 c„ôvi 86 bs cÖkœ I DËi

G·K¬wz mf g‡Wj †U÷ 02

1 } 520 c„ôvi 137 bs cÖkœ I DËi 4 } 604 c„ôvi 98 bs cÖkœ I DËi 7 } 522 c„ôvi 139 bs cÖkœ I DËi
2 } 603 c„ôvi 97 bs cÖkœ I DËi 5 } 409 c„ôvi 99 bs cÖkœ I DËi 8 } 410 c„ôvi 100 bs cÖkœ I DËi
3 } 664 c„ôvi 77 bs cÖkœ I DËi 6 } 521 c„ôvi 138 bs cÖkœ I DËi
82

G·K¬wz mf g‡Wj †U÷ 03

1 } 667 c„ôvi 82 bs cÖkœ I DËi 4 } 530 c„ôvi 150 bs cÖkœ I DËi 7 } 531 c„ôvi 152 bs cÖkœ I DËi
2 } 529 c„ôvi 149 bs cÖkœ I DËi 5 } 530 c„ôvi 151 bs cÖkœ I DËi 8 } 414 c„ôvi 107 bs cÖkœ I DËi
3 } 413 c„ôvi 106 bs cÖkœ I DËi 6 } 608 c„ôvi 105 bs cÖkœ I DËi

G·K¬wz mf g‡Wj †U÷ 04

1 } 538 c„ôvi 163 bs cÖkœ I DËi 4 } 419 c„ôvi 117 bs cÖkœ I DËi 7 } 420 c„ôvi 118 bs cÖkœ I DËi
2 } 671 c„ôvi 89 bs cÖkœ I DËi 5 } 539 c„ôvi 164 bs cÖkœ I DËi 8 } 540 c„ôvi 165 bs cÖkœ I DËi
3 } 613 c„ôvi 114 bs cÖkœ I DËi 6 } 613 c„ôvi 115 bs cÖkœ I DËi

G·K¬wz mf g‡Wj †U÷ 05

1 } 423 c„ôvi 124 bs cÖkœ I DËi 4 } 618 c„ôvi 123 bs cÖkœ I DËi 7 } 674 c„ôvi 94 bs cÖkœ I DËi
2 } 546 c„ôvi 174 bs cÖkœ I DËi 5 } 618 c„ôvi 124 bs cÖkœ I DËi 8 } 548 c„ôvi 176 bs cÖkœ I DËi
3 } 547 c„ôvi 175 bs cÖkœ I DËi 6 } 424 c„ôvi 125 bs cÖkœ I DËi

G·K¬wz mf g‡Wj †U÷ 06
1 K 2 K 3 M 4 K 5 K 6 N 7 L 8 M 9 N 10 M 11 M 12 K 13 L
14 L 15 K 16 L 17 N 18 M 19 L 20 K 21 L 22 L 23 K 24 L 25 K

G·K¬wz mf g‡Wj †U÷ 07

1 N 2 N 3 K 4 K 5 M 6 M 7 M 8 M 9 L 10 N 11 N 12 L 13 L
14 L 15 * 16 K 17 N 18 N 19 N 20 L 21 K 22 K 23 M 24 L 25 K

G·K¬wz mf g‡Wj †U÷ 08

1 M 2 N 3 K 4 L 5 K 6 K 7 K 8 N 9 L 10 K 11 K 12 K 13 L
14 N 15 K 16 N 17 L 18 N 19 K 20 M 21 K 22 K 23 N 24 N 25 M

G·K¬wz mf g‡Wj †U÷ 09

1 N 2 L 3 K 4 L 5 L 6 M 7 L 8 L 9 L 10 K 11 L 12 N 13 L
14 K 15 M 16 N 17 M 18 L 19 K 20 L 21 L 22 M 23 L 24 K 25 N

G·K¬wz mf g‡Wj †U÷ 10

1 M 2 N 3 N 4 L 5 L 6 N 7 L 8 M 9 N 10 K 11 M 12 L 13 M
14 M 15 K 16 N 17 L 18 N 19 K 20 M 21 K 22 M 23 L 24 N 25 L

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