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The document contains multiple-choice questions (MCQs) related to colligative properties and solutions, referencing specific pages from the NCERT textbook. It covers topics such as boiling point elevation, freezing point depression, osmotic pressure, and various solution behaviors under different conditions. The questions assess knowledge on the relationships between solute concentration, vapor pressure, and the physical properties of solutions.
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0% found this document useful (0 votes)
42 views14 pagesSolution
The document contains multiple-choice questions (MCQs) related to colligative properties and solutions, referencing specific pages from the NCERT textbook. It covers topics such as boiling point elevation, freezing point depression, osmotic pressure, and various solution behaviors under different conditions. The questions assess knowledge on the relationships between solute concentration, vapor pressure, and the physical properties of solutions.
Uploaded by
swatipr2612Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF or read online on Scribd
/ 14
'6. Which of the following is/are coligative
: NCERT Based MCQs
ieee
ee ee
Pee
fo
:
@) Weter - Nitric acia Renan
(4) Benzene - Acetone ae wate
E solution that could be used in the blood steam
se Gon boiling point of a solution of INCERT Fo. 291
9 (mol vit. = 100) in 100 9 of water is (1) 0.48 mol (2) 032 moll.
(4) 0.45 mol.
'ATy: then the ebullioscopic constant of water is
INCERT Pg. 16] 8,
(1), Lowering in vapour pressure
@) Freezing point
@) Boiling point
(4) Both (2) & (3)
‘The average osmotic pr
8) 0.30 mot
AS molar solution of 1,50,
property?
[NCERT Pg. 15)
cessure of human blood i678
sntration of aqueous NaC}
is diluted from 1 litre to
'e normality of the resulting solution is
(1) 10047, @ at, 40 litres. Th
aT
0 (4) 1047, bees
(1) 0.25N @ 10N
3 The order of Ky values of A, B and C gases is @) 20N @ 05N
Ky,> Ku. Kg. Then, the Jer of
5 correct order of their 9, Which of the followin
ee worrcrnre ich of the following with respect to negative
solubility in a liquid at given temperature is deviation is correct? INCERT Pa. 13)
INCERT Pg. 71 4) AGeq <0 Ege)
<0, AHsa < {
Mee css ) se ie ? Bae
Oe AS gy <0 ‘
@ B>A>c 7 se oa
Bie-c>A | 2) AG gq, < 0; AHsy <0: 8857 © a
(= (@) AGga > 0: Bes 0: AS =O
(4) A>B>Cc
4, The effect of increase in
aqueous solution of a substan
the temperature of an
10.
INCERT Pg. 4]
(1) Decrease in its molality
(4) AGgg > 0, Hg > 0: ASgas? ©
The total vapour pressures Prorat
two volatile component
(in tort) for @
mixture of ts, A and Bis
given by:
Pi, = 220 - 110 Xp
sion of component, B is
(2) Increase in its molality
{@) Increase in its mole fraction where, Xz is mole frac
tu
(4) Decrease in its molarity ie i an a
ressure (in torr) of pure components,
By the molarity of a solution of sod chloride in jence, Pt
500 ml of syaver containing 5.85.9 0rsodu™ chloride and B are respectively INCERT Pg.
is [NCERT Pg. 4] (a) 110, 220 oa
(1) 0.25M (2) 220, 110 - \ ie
0M (@) 220, 320 a
(3) 20M (4) 220, 10
(4) 02M
8, Puse Road, New Delhi-110008. Phone : 011-47623456
Tower,
(RNCaiporate Orrico : have
ee EEN ee ae
following mixtures
se
at 30°C is INCERT Pg. 20] () HD and HNO,
@) 002M (@) H,0 and CoHs
9
(4) 008M pias oo
a HCl, and CH,— © — CH, ¢
ofthe folowing aqueous solution wil have th @ CHE), s
eee? Meer Ce I (4) n-hexane and n-heatane 4 @
!) 0.1 NaCl solution (2) 0.1 m Sugar solution (ech oto fotoning wll riot chey af sa: Man
10:1 m MgCl, solution (4) 0.1 m AICI, solution
0 Qk,
“4 tenmatessscononstien tenia OS ae
: Ty courvenone @) Leceenene” 6 Whkthoneof he fotlwng 92008 vl have mi
value ofK, (kbar) at same temperature in aquagy
@) Equal to one (@) Zer0 fare
®
is 25% in 2) CO,
15, If degree of dissociation of Al(SO,), is 25% in a oH @) ©0, :
solvent, then INCERT Pg, 24] are #0 14. Ani
oe ana pOon= expermment| Polina Point 7 in the case of osmosis, solvent molecules move ig the
(@) Normal osmotic pressure = 2 « experimental
is
‘osmotic pressure (1) Higher vapour pressure to lower vapour pressing
8) Normal molecular weight = 2 « experimental
(2) Higher concentration to lower concentration a
‘molecular weight
(@) Lower vapour pressure to higher vapour pressulg ®
15, Th
1 igher osmotic pressure
1) Normal tezig pont = 2 = experiments! Haher osmotic pressure to lower osmoig «
st
lad 8. Assuming salts to be 90% dissociated, which of a
(RSL Section - 5 following will have highest osmotic pressure? 4
Objective Type Questions (1) DecimolarAl,(SO,), @
‘Which of the following is correct about a solution 2) Decimotar Bac, «
showing positive deviation? (3) DecimateeNa,s r
(1) Vapour pressure observed will be the less than a . 16. 2
that calculated from Raoult's law (4) Asolution obtainec by mixing equal volumes of iS
(2) and (3) and filtering 4
{2) Minimum boiling azeotrope will be formed 9 Whict fol (
Baie. Nich of the following is not a colligative propefy®
tnt fs (
(4) AV, < 0 (1) Vapour pressure of pure liquid solvent
% (2) Elevation in boiling
2 On mixing 10 mi of ethanol with 10 mi of benzene are
the total volume of the solution is 8) Depression in freezing point
(1) > 20 mi (4) Osmotic pressure a
< 10. ‘
— 2) <20m Which ofthe folowing is correct fora solution shown
@) =20m Positive deviation fr
om Raoult’s law? 4
Vic > 0, AHpie >0 (2) AV ian <0, AH $0
(3) AVmig = 0, AH, 0 (4) AVyy > 0, AP
(4) Can't be predicted (1)
a hn
Tower, usa Road, New Dethi-t10005 Phone : 011-47623456) pressure of solvent and
re the moles of solute and,
@ Pam
my
oe
Te
. ‘ man,
Fg pain of Gt, CH,OH, CH,
Baron ave sore, 880, eave ate size
Which ofthe follow
ing will hav
(apour pressure at room temperature? mie
(t) Cots (2) CHOH
@) PP=Pxn,
P= 199% 135
(where xis the mole fraction of meth
are the vapour pressures of pure moth alconoh
pure ethyl alcohol at 40°C?
(1) 195 and 264 torr (2) 119 and 195 torr
(8) 119 and 264 tor (4) 384 and 195 torr
solvent decreased by 10.”
alconok.) What
and
@) CoH SNH, (4) C.HNO, 20. The vapour pressure of a!
/law> 43. Hany solute’ dimerises in water att atm pre of ig when @non-olatle solute was ced 6 >
Hanyehtecmensnwsi sangre «SN ae tn un foozo
Bipraaze a caare ciercy | teleeNtetetcareatge |
ninimum, ofA " @) 08 @ 06
aqueous (1) 50% 2) 30% Ske Oe
21. Wamofnon-volatie organic substance of
5% %
@ 2 (4) 100% mass Mis dissolved in 250 gm benzene. Molal
44, An aqueous solution freezes at-0.36°C. Ky and Ky tlevation constant of benzene is K,, Elevation in 8S
procter are 1.8 and 0.52°C -kg mot respectively oo
ve from then value of boling point of solution at 1 alm pressure ) aK,W
ressure E ey Soe
108" 01"
Bs (4) 101.04°C ) 100.1°C » KW
(@) 0.104°C (4) 100°C ® “aw
ressure
44. Therelationship between osmotic pressure (P)at278 22. The molal elevation constant for water Is
smotic Keuihen 10 g glucose (P,), 10.9 urea (P,) and 10.9 Tre reach Calouatethebolingotthescuton
fuerose (P,) are dissolved in 250 mi of water's made by dissolving 6.0 gm of urea in
: 200 gm of water
of the (t) P, > P2>P. Lael
> g } (4) 100.28°C @ 108°C
@) P,>P.>P. ae :
i) 2 (3) 028°C (@) 20028°C
@) P7 Ps? Ps 23, The graph plotted vapour pressure vs mole fraction,
is the graph for which of the folowing example
(4) P,> P2>P
we: 16, Arrange the followi aqueous solutionsin the order
nes of of their increasing boiling points
(i) 10-* M NaC! (i) 10° M Urea
erty? 0 pie?
(ii) 10° M MgCl, (v) 10° M NaCl
@ w deal solution (avesee)
Bsc crmirt 0) an
4. Negativedeviaton —(W) ot
1000),
°
= W)
™ Foor,
(a afi), BG, eC, 0) @) a0), BA, 0,
) ali), ), 46) 4) a), BED fv.
se
, 4, The Henny’s law constant (K,) values of three
of goses (A.B, C) in water are 145, 2 107 and 35
bar, respectively. The solubility ofthese gases in
INEET-2024)
@B>crA
(4) A>B>C
ure ({1) vs concentration
ives a straight line with
ature at which
SECTION - C
Previous Years Questions
ce water follow the order
re () B>Arc
@a>cre
2 The plot of osmotic press’
(mol L~) for a solution gi
slope 25.73 L. bar mot". The tempe
the osmotic pressure measurement = done ©
[NEET-2024)
(083 L bar mot" K"")
(Use R=
(2) 310°C
(1) 37°c
(4) 12.05°C
@) 25.73°C
3, Which amongst the
electrolytes will have rinimury
point? Choose the correct option.
[NEET-2023 (Phase?)
(2) 1M NaCl
(4) 0.4 MKCI
es at the same temperature
NeeT-2022 (Phase2)]
following aqueous SolutONS of
elevation in boiling
(1) 0.1 M MgSO,
(8) 0.05 M NaCl
4, Ky, value for some gas
‘T are given:
ERB Coporate Ofte
Jo i Aakash Tower
g, Pusa Road,
(1) HoHO < cH, < 60, <
@) Ar< 00, < GH, < HCHO
@) Are CH, < CO, < HCHO
(@) HCHO < CO, < CH, Py? Pe
der of os ots
@) Pa> Ps > Po
() PL>P,>P, Pe Para
49460
; @
27 100 ml of 1 M NaOH is mixed with 60 m! of
TN'KOH solution. “Normality of mixture is
le traction—+
1) 1N 2) 0.5N vera e
Correct observation fo this solution
@) 0.25N 4) 2N ¢
(1), He 9 @) AS pyc: i
28 Mass of NaC! required to prepare 0.01 m aqueous B59
‘solution in 1 kg water is (3) AV ini 748 (4) All of these
m) 0.8859 436, Amixture of two quids A and 8 having boing poe
Grais 70°C. and baling point of Bis 100°C, dei
3 4) 5.889 at 101.2°C as single liquid, hence this mistursis
‘The vapour pressures of two iquids Aand Bare 100 Cy eee su
tn 16Dior respective, Tho ota vapour pressure Sie nal ton oo
{@) Non ideal solution showing —ve deviation
44 on (@) immiscible solution
150,00 torr (4) 199.33 tor 16. Vapour presstre diagram of some iquds pli
against temperature are shown below
30. The freezing point of a solution containing 0.4 g of st p
aceticacid in 40 g of benzene is lowered by 0.512°C. Pr 7s 8S
imal isthe degree of dimerisation of acetic acid? a
[Kbenzene) = 5.12 K kg mot") |
4) 60% 2 90% | E
(4) 60% 7
4 molar aqueous solution is__ ‘Most volatile liquid
nm aqueous solution Ma
4), More & Qe a1
Q) Less ack
(@) Equally ane
(4) Very less were
uring evaporation of iquid
{Wnt is he concentration of NO,-ions when equal ° a
yolumes of 0.1 MAGNO; and 0.1 MNaClare mixed (1) The temperature of liquid rises
together? sii (2) The temperature of liquid falls
(1) 0.1N (2) 0.
“ (0) The temperature of quid remains une
@ 005M @) 02M ‘
(4) The liquid molecules becomes inert
memmenncarmeate Once Aakash Tower, 8, Puse Road, New Dai
10008, Phone * 014471 Point
49) Ne* moves from solution
Ato solution B S Baw
Both Na* and é Wich havi ih
a ee Bed we Tn tn a
ai ‘ ques sli
from solution (A
‘solution (B) ) to (3) Aqueous solution (4)
us elation () Ages slton
“a
t We
wc
9 Comect observation a
1
Freezing point of solution is marked a5
Ma ae
@c @ 0
O1MUrea 0.1MNaCl 0.1 M CaCl,
(1) Vapour pre:
pour pressure o'
45, varit Hoff factor for acaic acid in aqueous medium,
at infinite dilution is
s di
- (2 @4
va % 3
46. Correct order o freezing point of gven eaution
int is maximum for Il ho 0) Rr O BR
is minimum for It ; S02 co
ih 0.4 MINA
lution of sugar is taken in a beaker hve eee!
40.
@ tole v
Be cyatais a (y Leneii