wZ‡jvP wkeŸvwU eûg~Lx D”P we`¨vjq
‡kÖYx:-10g
welq ˆKvW : 1 3 7
mgq-25 wgwbU imvqb 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©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK…ó Dˇii e„ËwU
ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]
1. AbymÜvb I M‡elYv cÖwµqvi wØZxq 10. GKwU †cÖvU‡bi fi KZ? 19. SnCl2 + Cl2 ® SnCl4; wewµqvwU‡Z-
avc †KvbwU? K 1.67 ´ 10-24 kg i. Cl2 GKwU RviK c`v_©
K Kv‡Ri cwiKíbv L 1.67 ´ 10-27 kg
-27
ii. Sn+2 Gi weRviY N‡U‡Q
L Z_¨ I DcvË we‡kølY M 1.67 ´ 10 g
iii. SnCl2 GKwU weRviK c`v_©
M welqe¯‘ m¤ú‡K© mg¨K Ávb N 9.11 ´ 10-28 g
11. GKwU †gŠ‡ji GKwU cigvYyi cÖK…Z wb‡Pi †KvbwU mwVK?
N cixÿY I Z_¨ DcvË msMÖn
fi hw` 4.482 ´ 10-23 g nq Z‡e Gi K i I ii L i I iii
2. RviK M¨vm wb‡`©kK mvs‡KwZK wPý
Av‡cwÿK cvigvYweK fi n‡e- M ii I iii N i, ii I iii
†KvbwU?
K Av¸‡bi wkLv K 25 L 27 20. meyR wfwUªqj ejv nq †KvbwU‡K?
M 29 N 40 K CuSO4.5H2O
L e„‡Ëi Dci Av¸‡bi wkLv
12. j¨vfqwm‡q KZwU †gŠj wb‡q ch©vq L ZnSO4.7H2O
M wUªd‡qj N wec¾bK
mviwY ˆZwi K‡iwQ‡jb? M FeSO4.7H2O
3. CNG M¨v‡mi cÖavb Dcv`vb Kx?
K 33 L 64 N FeSO4.5H2O
K CH4 L C2H6
M C3H8 N C4H8 M 67 N 92 21. A¨v‡gvwbqvg Kve©‡bU †hŠMwU‡Z KZwU
4. wb‡Pi †KvbwUi wbtmiY nvi me‡P‡q 13. wb‡Pi †KvbwU avZe ag© me‡P‡q †ewk? cigvYy we`¨gvb?
†ewk? K K L Na K9 L 14
M Mg N Li M 19 N 20
K mvjdvi WvBA·vBW
14. K¨vWwgqvg †gŠjwU ch©vq mviwYi †Kvb 22. wb‡Pi †KvbwU mvaviY ZvcgvÎvq
L bvB‡Uªv‡Rb WvBA·vBW
MÖæ‡c Aew¯’Z? Zij?
M nvB‡Wªv‡Rb mvjdvBW
K 10bs L 11bs K C4H10 L C6H14
N B‡_b
M 12bs N 14bs M C16H34 N C3H8
5. †Kvb c`v_©‡K Zvc w`‡j KwVb Ae¯’v
†_‡K mivmwi M¨vmxq Ae¯’v cÖvß nq? 15. Ae¯’ všÍ i †gŠj wb‡Pi †KvbwU? n wb‡Pi DÏxcKwU c‡o 23 I 24 bs
K Sc L Ca
K NH3 L SO2 cÖ‡kœi DËi `vI :
M Zn N Cu
M C6H6 N C10H8 H3PO4
16. CH3CH = CH2 + H2O ¾¾¾® X
6. †gvgevwZi Mj‡b- 600 °C
Mg Al X P S Y Ar
i. Zvc I Av‡jv Drcbœ nq [O] [O]
GB ch©vqwU‡Z- ¾® Y ¾® Z
ii. KYvmg~‡ni AvšÍtAvYweK kw³
i. evg †_‡K Wvb w`‡K cvigvYweK 23. X †hŠ‡Mi AvYweK fi KZ?
K‡g hvq
AvKvi n«vm cvq K 46 L 60
iii. wMÖb nvDm M¨vm ˆZwi nq
ii. X I Y †gŠj Øviv MwVZ A·vBW M 74 N 84
wb‡Pi †KvbwU mwVK?
Ki L ii AZ¨šÍ KwVb 24. Z †hŠMwU-
M ii I iii N i, ii I iii iii. Y †gŠ‡ji AvqwbKiY kw³ Kg i. GKwU ˆRe GwmW
7. 56 wb‡Pi †KvbwU mwVK? ii. NaOH Gi mv‡_ wewµqv K‡i
26Fe cigvYyi wbDUªb msL¨v KZ?
2+
K 24 L 26 K i I ii L ii I iii jeY I cvwb Drcbœ K‡i
M 28 N 30 M i I iii N i, ii I iii iii. wf‡bMvi ˆZwi‡Z e¨en„Z nq
8. (n-1)d ns B‡jKUªb web¨vmwewkó 17. wb‡Pi †Kvb †hŠM cvwb‡Z `ªexf‚Z nq
3 2
wb‡Pi †KvbwU mwVK?
(n = 4) †gŠj †KvbwU? bv? K i I ii L ii I iii
K Sc L Ti K CaCl2 L AgCl
M i I iii N i, ii I iii
MV N Cr M MgCl2 N KF
9. Zn Gi M †k‡j KZwU B‡jKUªb 18. CaCl2 †hŠMwU‡Z KZ †Rvov gy³ 25. dmdwiK Gwm‡W dmdiv‡mi RviY
we`¨gvb? B‡jKUªb we`¨gvb? gvb KZ?
K 16 L 17 K6 L 10 K+3 L+5
M 18 N 20 M 11 N 12 M -3 N -5
