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Colligative properties are the properties of
(a)
dilute solutions which behave as nearly ideal solutions
(b)
concentrated solutions which behave as nearly non–ideal solutions
(c)
both (i) and (ii)
(d)
neither (i) nor (ii)
The freezing mixture used in ice cream machine consists of ice and
(a)
NaCl
(b)
CaCl2
(c)
KNO3
(d)
both a & c
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Which of the following solutions has the highest boiling point?
(a)
5.85% solution of NaCl
(b)
18.0% solution of glucose
(c)
6.0% solution of urea
(d)
all have same boiling point
Two solutions of NaCl and KCl are prepared separately by dissolving same amount of the solute in
water. Which of the following statements is true for these solutions
(a)
KCl solution will have higher boiling point than NaCl solution
(b)
both the solutions have same boiling point
(c)
KCl and NaCl solutions possess same vapour pressure
Molarity of pure water is
(a)
1
(b)
18
(c)
55.5
(d)
6
18 gm glucose is dissolved in 90 gm of water. The relative lowering of vapour pressure is
equal to
(a) 1
(b)
5.1
(c) 2
(d)
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The molar boiling point constant is the ratio of the elevation in boiling point to
(a)
molarity
(b)
molality
(c)
mole fraction of solvent
(d)
less than that of water
An aqueous solution of methanol in water has vapour pressure
(a)
equal to that of water
(b)
equation to that of methanol
(c)
more than that of water
(d)
less than that of water
An ozeotropic mixture of two liquids boils at a lower temperature than either of them when
(a)
it is saturated
(b) it shows positive deviation
from Raoult’s law
(c)
it shows negative deviation from Raoult’s law
(d)
it is metastable
In azeotropic mixture showing positive deviation from Raoult’s law, the volume of mixture is
(a)
slightly more than the total volume of components
(b)
slightly less than the total volume of the component
(c)
equal to the total volume of the components
(d)
none of these
A solution of glucose is 10%. The volume in which 1 gm mole of it is dissolved will be
(a) 1 dm3
(b)
1.8 dm3
(c)
200 cm3
(d)
900 cm3
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12 1 kg of sea water contains 4.96 x 10–3 gm of dissolved oxygen. The concentration of oxygen in
sea water in ppm is
(a)
4.96 x 10–2
(b)
0.496
(c)
4.96
(d)
49.6
13 A solution of sucrose is 34.2%. The volume of solution containing one mole of solute
(a)
500 cm3
(b)
1000 cm3
(c)
342 cm3
(d)
3420 cm3
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14 Salt of a weak acid with strong base when dissolved in water gives
(a) acidic solution (b) basic solution
(c) neutral solution
(d)
none
15 Mole fraction of 10% urea is
(a)
0.042
(b)
0.023
(c)
0.032
(d)
0.072
16 Which of the following mixtures of liquids show negative deviation
(a) ethyl alcohol ether (b) HCl and water (c) phenol – water (d) chlorobenzene bomobenzene
17 The term cryoscopy is used
(a)
depression of freezing point
(b)
elevation in boiling point
(c)
lowering of vapour pressure
(d)
osmotic pressure
18 The term ebullioscopy is used
(a)
depression of freezing point
(b)
elevation in boiling point
(c)
lower of vapour pressure
(d)
none of above
19 Azeotropic mixture
(a)
obey Henry’s law
(b)
obey Raoult’s law
(c)
do not obey Raoult’s law
(d)
obey Dalton’s law
20 Hydrolysis of potassium acetate produce
(a)
acidic solution
(b)
neutral solution
(c)
basic solution
(d)
none of these
21 Which one of the following salts will not hydrolyse
(a)
NaCl
(b)
AlCl3
(c)
Na2CO3
(d)
CH3COONa
22 The sum of mole fractions (X) of components of a solution is equal to
(a)
100
(b)
200
(c)
one
(d)
zero
23 Which pair of mixture is called idea solution
(a) nicotine–water (b) chlorobenzene & bromobenzene (c) water–ether (d)
water–alcohol
24 The vapour pressure of aqueous solution of sugar solution is
(a) equal to vapour pressure of water
(b) more than vapour pressure of pure water
(c)
less than vapour pressure of pure water
(d)
none of above
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25 When NaCl is dissolved in water
(a)
melting point decrease
(b)
boiling point decrease
(c)
both melting and boiling point decrease
(d)
none of above
26 The solution which distils without change in composition is called
(a)
unsaturated solution (b)
saturated solution
(c)
zeotropic mixture
(d)
azeotropic mixture
27 Solubility curve of Na2SO4 10 . H2O shows
(a)
constant increase of solubility
(b)
constant decrease of solubility
(c)
discontinuous solubility with temp
(d)
none of above
28 Use of glycol as antifreeze in the automobile is an important application of
(a)colligative property
(b)Roault’s law (c) fractional crystallization (d) hydrolysis
om
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29 Use of NaCl in ice cream making is an important application of
(a)
constitutive property
(b)
additive property
(c)
colligative property
(d)
Roault’s law
30 Which one of the following solutions will have higher vapour pressure than that of water
(a)
aqueous solution of CH3OH
(b)
aqueous solution of H2SO4
(c)
aqueous solution of sugar
(d)
aqueous solution of urea
31 Ethylene glycol is mixed with water as anti freeze in radiator because
(a)
it has low vapour pressure
(b)
it raises the boiling point of water
(c)
it lowers the freezing point of water (d)
it changes osmotic pressure
(e)
it has all characters
32 Which one of following is not soluble in alcohol
(a)
KCl
(b)
urea
(c)
acetone
(d)
ether
33 Mixture of alcohol and water can be separated by
(a)
solvent extraction
(b)
crystallization
(c)
filtration
(d)
fractional distillation
34 Which one of following is not a conjugate solution
(a)ether + water
(b)phenol + water (c)nicotine + water (d) ethanol + water
35 Which one of the following has discontinuous solubility curve
(a) NaCl
(b)
KCl
(c)
NaNO3
(d)
CaCl2 . 6H2O
36 Which one of following has continuous solubility curve
(a) NaCl
(b)
NaNO3
(c)
Na2SO4 . 10H2O
kaa
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Solubility of following decrease with increase in temp
(a) Ce2(SO4)3
(b)
CaCl2 . 6H2O (c)
Pb(NO3)2
(d)
(d)
both a and b
K2Cr2O7
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38 According to Roault’s law
(a)
relative lowering of V.P. is equal to mole fraction of solute
(b)
the lowering of V.P. is directly proportional to the mole fraction of solute
(c)
V.P. of a solvent above a solution is equal to product of V.P. of pure solvent
and mole fraction of solvent in solution
(d)
all the above
39 The solution of KCl
(a)
acidic
(b)
basic
(c)
neutral
(d)
none of above
40 Na2SO4 solution is
(a)
acidic
(b)
basic
(c)
neutral (d)
none of above
41 The solution of CuSO4 is
(a)
acidic
(b)
basic (c)
neutral
(d)
none of above
om
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42 The solution of AlCl3 is
(a)
acidic
(b)
basic
(c)
neutral
(d)
none of above
43 The solution of CH3COONa
(a)
acidic
(b)
basic
(c)
neutral
(d)
none of above
44 The no. of water of crystallization of MgCl2
(a)
12
(b)
6
(c)
3
(d)
4
45 The no. of water of crystallization of MgSO4
(a)
12
(b)
7
(c)
5
(d)
3
46 Freezing point depression is measured by
(a)
Beckmann’s apparatus
(b)
Land’s Berger’s
(c)
Antifreeze apparatus
(d)
all the above
47 Elevation of boiling is measured by
(a)
Beckmann’s apparatus
(b)
Lands berger’s method
(c)
Antifreeze apparatus
(d)
none of above
48 Colligative properties are the properties of solution that depends upon
(a)
nature of molecules (b)
quality
(c)
physical property
(d)
no. of molecules
49 Aqueous solution of glucose boils at 100.52oC. The solution contains
(a)
180 gm glucose in 1 litre water
(b)
90 gm glucose in 1 litre water
(c)
18 gm glucose in 1 litre water
(d)
3.6 gm glucose in 1 litre water
50 Aqueous solution of methanol is zeotropic mixture because
(a)
it does not obey the Roalt’s law
(b)
mixture cannot be separated by sublimate
(c)
mixture can be separated by distillation
(d)
greater volume than the volume of component
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51. What mass of silver nitrate, AgNO3, is required to prepare 800. g of 3.50% solution of AgNO3?
a. 24.6 g
b. 26.7 g
c. 27.0 g
d. 25.5 g
e. 28.0 g
52. What mass of water is contained in 160. grams of 22.0% KCl solution?
a. 125 g
b. 86.8 g c. 35.2 g
d. 130 g
e. 112 g
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53. The density of a 7.50% solution of ammonium sulfate, (NH4)2SO4, is 1.04 g/mL. What mass of
(NH4)2SO4 would be required to prepare 750. mL of this solution?
a. 45.8 g
b. 54.0 g
c. 58.5 g
d. 62.4 g
e. 65.7 g
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54. What volume of 40.0% NaNO3 solution contains 0.15 mole of NaNO3? Density = 1.32 g/mL.
a. 42.0 mL
b. 3.86 mL
c. 9.60 mL
d. 24.1 mL
e. 38.2 mL
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55. What is the molarity of 175 mL of solution containing 2.18 grams of
Na2SO4•10H2O?
a. 3.77 10-3 M
b. 6.44 10-1 M
c. 8.78 10-3 M
d. 1.18 10-3 M
e. 3.87 10-2 M
56. What mass of Na2SO4 is required to prepare 400. mL of 1.50 M Na2SO4 solution?
a. 213 g b. 56.8 g
c. 71.4 g
d. 85.2 g
e. 8.52 104 g
57. Calculate the molarity of the resulting solution if 25.0 mL of 2.40 M HCl solution
is diluted to 300. mL.
a. 0.200 M
AgNO3 + NaCl
a. 0.117 g
AgCl + NaNO3
b. 1.17 g
c. 2.34 g
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b. 29.0 M
c. 2.00 M
d. 0.400 M
e. 0.0400 M
58. Silver nitrate, AgNO3, reacts with sodium chloride as indicated by the following equation. What mass of
NaCl would be required to react with 200. mL of 0.200 M AgNO3 solution?
d. 4.68 g
e. 3.06 g
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59. What volume of 0.130 M HCl solution will just react with 0.424 gram of Ba(OH)2?
BaCl2 + 2H2O
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2HCl + Ba(OH)2
a. 38.1 mL
b. 32.6 mL
c. 24.1 mL
d. 18.6 mL
e. 96.7 mL
60. What is the total ionic equation for the following formula unit equation?
HF(aq) + KOH(aq)
[H+(aq)+F-(aq)] + [K+(aq)+OH-(aq)] [K+(aq)+F-(aq)] + [2H+(l)+O2-(l)]
[H+(aq)+F-(aq)] + [K+(aq)+OH-(aq)] [K+(aq)+F-(aq)] + H2O(aq)
HF(aq) + [K+(aq)+OH-(aq)] [K+(aq)+F-(aq)] + H2O(l)
HF(aq) + [K+(aq)+OH-(aq)] [K+(aq)+F-(aq)] + [2H+(aq)+OH-(aq)]
HF(aq) + OH-(aq) F-(aq) + H2O(l)
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a.
b.
c.
d.
e.
KF(aq) + H2O(l)
61. What is the oxidizing agent in the following reaction?
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8H+(aq) + 3C2H5OH(aq) + Cr2O72-(aq)
a.
b.
c.
d.
e.
H+
Cr2O72Cr3+
C2H5OH
H2O
2Cr3+(aq) + 3C2H4O(aq) + 7H2O(l)
kaa
62. Which response includes all the following that are oxidation-reduction reactions, and no others?
I.
II.
III.
BaSO3(s) BaO(s) + SO2(g)
2K(s) + Br2(l) 2KBr(s)
H2CO3(aq) + Ca(OH)2(aq) CaCO3(s) + 2H2O(l)
IV.
V.
SnS2(s) + 6HCl(aq)
3Cl2(g) + 6KOH(aq)
H2SnCl6(s) + 2H2S(aq)
5KCl(aq) + KClO3(aq) + 3H2O(l)
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a. II, III, and IV
b. I and III
c. II and V
e. another one or another combination
d. I and IV
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63. What is the reducing agent in the following reaction?
Cu(s) + 4H+(aq) + SO42-(aq)
Cu
H+
SO42Cu2+
SO2
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a.
b.
c.
d.
e.
Cu2+(aq) + 2H2O(l) + SO2(g)
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64. Which of the following reactions is a combination reaction?
a. AgNO3(aq) + HCl(aq) AgCl(s) + HNO3(aq)
b. Na2O(s) + CO2(g)
Na2CO3(s)
c. C3H8(g) + 5O2(g)
3CO2(g) + 4H2O(l)
d. 2H2O(l) 2H2(g) + O2(g)
e. KOH(aq) + HCl(aq) KCl(aq) + H2O(l)
kaa
65. Write the balanced total ionic equation for the complete reaction of phosphoric acid and calcium hydroxide.
What is the coefficient preceding water in this equation?
a. 6
b. 8
c. 12
d. 4
e. 5
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66. Write the balanced net ionic equation for the complete neutralization of chromium (III) hydroxide with
sulfuric acid. Use H+ rather than H3O+. What is the sum of the coefficients? (Do not forget coefficients of
one.)
a. 11
b. 8
c. 16
d. 18
e. 22
67. Will a precipitate form when 0.1 M aqueous solutions of HBr and Pb(CH3COO)2 are mixed? If a precipitate
does form, identify the precipitate and give the net ionic equation for the reaction.
a. PbBr2 precipitates.
2[H+(aq)+Br -(aq)] + [Pb2+(aq)+2CH3COO-
e. No precipitate forms.
(aq)]
PbBr2(s) + 2CH3COOH(aq)
H+(aq) + CH3COO-(aq)
CH3COOH(s)
Pb2+(aq) + 2Br -(aq)
PbBr2(s)
Pb(CH3COO)2(aq) + 2Br (aq)
PbBr2(s)
+ 2CH3COO-(aq)
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b. CH3COOH precipitates.
c. PbBr2 precipitates.
d. PbBr2 precipitates.
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69.
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68. Will a precipitate form when 0.1 M aqueous solutions of Ba(NO3)2 and H2CO3 are mixed? If a precipitate
does form, identify the precipitate and give the net ionic equation for the reaction.
a. No precipitate forms.
b. BaCO3 precipitates.
Ba2+(aq) + CO32-(aq)
BaCO3(s)
c. BaCO3 precipitates.
Ba2+(aq) + H2CO3(aq)
BaCO3(s) + H2(g)
d. BaCO3 precipitates.
Ba2+(aq) + H2CO3(aq)
BaCO3(s) + 2H+(aq)
e. H2(NO3)2 precipitates.
2H+(aq) + 2NO3-(aq)
H2(NO3)2(s)
H2O(l) + CO2(g), is the net ionic equation for the reaction of an
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The equation, 2H+(aq) + CO32-(aq)
aqueous mixture of
a. CaCO3 and HCl.
b. Na2CO3 and HCl.
c. H2CO3 and NaOH.
d. BaCO3 and H2SO4.
e. (COOH)2 and KOH.
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70. Which of the following is not a metathesis reaction?
a. CH4(g) + 2O2(g) CO2(g) + 2H2O(l)
b. FeS(s) + 2HCl(aq) FeCl2(aq) + H2S(g)
c. CaCl2(aq) + K2CO3(aq) CaCO3(s) + 2KCl(aq)
d. 2HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2H2O(l)
e. AgNO3(aq) + NaBr(aq) AgBr(s) + NaNO3(aq)
71. Which of the following reactions is (are) metathesis reactions?
I.
kaa
a.
b.
c.
d.
e.
2NaCl(aq) + Hg2(NO3)2(aq)
only I
only II
only III
only I and II
only I and III
I.
II.
III.
IV.
V.
redox
combination
decomposition
displacement
metathesis
2PbO(s) + O2(g)
I and V
only II
I and II
only III
only V
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a.
b.
c.
d.
e.
2PbO2(s)
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72. Classify the following reaction by giving all of these reaction type(s) that apply.
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73. Classify the following reaction by giving all of these reaction type(s) that apply.
redox
combination
decomposition
displacement
metathesis
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I.
II.
III.
IV.
V.
CaCO3(s)
only I
only II
only III
only IV
I and V
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a.
b.
c.
d.
e.
CaO(s) + CO2(g)
74. Classify the following reaction by giving all of these reaction type(s) that apply.
redox
combination
decomposition
displacement
metathesis
bio
I.
II.
III.
IV.
V.
Ba(OH)2(aq) + Na2CO3(aq)
only I
only II
only V
only IV
II and III
kaa
a.
b.
c.
d.
e.
BaCO3(s) + 2NaOH(aq)
75. Classify the following reaction by giving all of these reaction type(s) that apply.
redox
combination
decomposition
displacement
metathesis
P4(s) + 10Cl2(g)
I and V
only II
only III
I and II
only V
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a.
b.
c.
d.
e.
4PCl5(g)
re.c
I.
II.
III.
IV.
V.
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76. A solution is made by dissolving some salt in a beaker of water. The salt is referred to as the
A. solute
B. filtrate
C. solution
D. solvent
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77. When KCl dissolves in water, the following will be produced.
B. K+ and Cl-
A. K and Cl
C. K and Cl2
D. K+ and Cl2
78. What is the concentration, in % (m/v) of a solution containing 15.0 g KCl in 600.0 mL solution?
A. 5.00%
B. 2.00%
C. 0.200%
D. 2.50%
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79. A 5.00 mL sample of solution has 2.8 x 10-4 g of calcium ions. The ppm concentration is
A. 18 ppm
B. 56 ppm
C.
2.8 x 10-1
ppm
D. 2.8 x 102 ppm
80. How many mL of 2.50% (m/v) salt solution would contain 1.80 g of salt?
105 mL
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A.
B. 104 mL
C. 45.0 mL
D. 72.0 mL
81. What is the molarity of a solution that contains 1.50 mol HCl in 2.50 L of solution?
A. 1.67 M
B. 0.600 M
C.
1.20 M
D. 1.40 M
A. 0.750 mol
kaa
82. How many moles of C12H22O11 are needed to prepare 2.50 L of 0.300 M solution?
B. 0.430 mol
C.
8.33 mol
D. 1.20 mol
83. What is the molarity of a NaNO3 solution made by diluting 250.0 mL of a solution to a final
1.60 Mvolume of 400. mL?
A. 1.20 M
B. 1.00 M
C. 0.200 M
D. 0.160 M
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84. In the process known as osmosis, __________ moves through a semi-permeable membrane
into an area of lower __________ concentration.
A. water, water
B. solute, solute
C. water, solute
D. solute, water
85. What is the osmolarity of 0.800M (NH4)3PO4 solution?
A. 3.20 osmol
C. 1.60 osmol
B. 2.40 osmol
D. 8.00 osmol
om
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88
90
92
94
95
The solution of CuSO4 is
(a)
acidic
(b)
(c)
neutral
(d)
basic
none of above
The sum of mole fractions (X) of components of a solution is equal to
(a)
100
(b)
200
(c)
one
(d)
zero
Which pair of mixture is called idea solution
(a) nicotine–water (b) chlorobenzene & bromobenzene (c) water–ether (d)
water–alcohol
The vapour pressure of aqueous solution of sugar solution is
(a) equal to vapour pressure of water
(b) more than vapour pressure of pure water
(c)
less than vapour pressure of pure water
(d)
none of above
When NaCl is dissolved in water
(a)
melting point decrease
(b)
boiling point decrease
(c)
both melting and boiling point decrease
(d)
none of above
The solution which distils without change in composition is called
(a)
unsaturated solution (b)
saturated solution
(c)
zeotropic mixture
(d)
azeotropic mixture
Solubility curve of Na2SO4 10 . H2O shows
(a)
constant increase of solubility
(b)
constant decrease of solubility
(c)
discontinuous solubility with temp
(d)
none of above
Use of glycol as antifreeze in the automobile is an important application of
(a)colligative property
(b)Roault’s law (c) fractional crystallization (d) hydrolysis
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96
basic
none of above
kaa
93
(b)
(d)
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Na2SO4 solution is
(a)
acidic
(c)
neutral
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89
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86 According to Roault’s law
(a)
relative lowering of V.P. is equal to mole fraction of solute
(b)
the lowering of V.P. is directly proportional to the mole fraction of solute
(c)
V.P. of a solvent above a solution is equal to product of V.P. of pure solvent
and mole fraction of solvent in solution
(d)
all the above
87 The solution of KCl
(a)
acidic
(b)
basic
(c)
neutral
(d)
none of above
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97 Use of NaCl in ice cream making is an important application of
(a)
constitutive property
(b)
additive property
(c)
colligative property
(d)
Roault’s law
98 Which one of the following solutions will have higher vapour pressure than that of water
(a)
aqueous solution of CH3OH
(b)
aqueous solution of H2SO4
(c)
aqueous solution of sugar
(d)
aqueous solution of urea
99 Ethylene glycol is mixed with water as anti freeze in radiator because
(a)
it has low vapour pressure
(b)
it raises the boiling point of water
(c)
it lowers the freezing point of water (d)
it changes osmotic pressure
(e)
it has all characters
100 Which one of following is not soluble in alcohol
(a)
KCl
(b)
urea
(c)
acetone
(d)
ether
AIIMS,CBSE,AIPMT, AFMC,Bio.Tech & PMT, Contact :- 9438559863, Mail at :- [email protected],www.ibiokaare.com,compiled by AKB
2
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4
5
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6
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7
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8
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9
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12
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13
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15
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20
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26
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27
23
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29
25
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30
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31
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32
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35
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AIIMS,CBSE,AIPMT, AFMC,Bio.Tech & PMT, Contact :- 9438559863, Mail at :- [email protected],www.ibiokaare.com,compiled by AKB
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