1.

Henry’s law constants for aqueous solution of CO, O2, CO2 and
C2H2 gases are respectively at 25°C as 58 × 103, 43 × 103, 1.61 × 103
and 1.34 × 103 The solubility of these gases decreases in the
order
(a) CO > O2 > CO2 > C2H2
(b) O2 > CO2 > CO > C2H2
(c) C2H2 > CO2 > O2 > CO
(d) O2 > CO2 > C2H2 > CO
(c)
2. The solubility of a gas in water depends on
(a) Nature of the gas
(b) Temperature
(c) Pressure of the gas
(d) All of the above
(d)
3. The dissolution of a gas in a liquid is governed by
(a) Raoult’s law
(b) Henry’s law
(c) Dalton’s law of partial pressure
(d) van’t Hoff factor
(b)
4. Which is correct about Henry’s law?
(a) The gas in contact with the liquid should behave as an
ideal gas
(b) There should not be any chemical interaction between the
gas and liquid
(c) The pressure applied should be high
(d) All of these
(d)
5. Molarity is expressed as
(a) Gram / litre
(b) Moles / litre
(c) Litre / mole
(d) Moles / 1000 grams
(b)
6. What is the molarity of a solution of HCl which contains 49%
by weight of solute and whose specific gravity is 1.41?
(a) 15.25
(b) 16.75
(c) 18.92
(d) 20.08
(c)
7. Normality of 2M sulphuric acid is
(a) 2N
(b) 4N
(c) N/2
(d) N/4
(b)
8. The molarity of pure water is
(a) 55.6
(b) 5.56
(c) 100
(d) 18
(a)
9. The unit of molality is
(a) Mole per litre
(b) Mole per kilogram
(c) Per mole per litre
(d) Mole litre
(b)
10. Molarity of 4% NaOH solution is
(a) 0.1M
(b) 0.5M
(c) 0.01M
(d) 1.0M
(d)
11. In which ratio of volumes 0.4 M HCl and 0.9 M HCl are to be
mixed such that the concentration of the resultant solution
becomes 0.7 M
(a) 4:9
(b) 2:3
(c) 3:2
(d) 1:1
(b)
12. 5 ml of N HCl, 20 ml of N/2 H2SO4 and 30 ml of N/3 HNO3 are
mixed together and volume made to one litre. The normality of
the resulting solution is
(a) N/5
(b) N / 10
(c) N / 20
(d) N / 40
(e) N / 25
(d)
13. Which of the following is a colligative property?
(a) Osmotic pressure
(b) Boiling point
(c) Vapour pressure
(d) Freezing point
(a)
14. Which is not a colligative property in the following?
(a) pH of a buffer solution
(b) Boiling point elevation
(c) Freezing point depression
(d) Lowering of vapour pressure
(a)
15. The colligative properties of a solution depend on
(a) Nature of solute particles present in it
(b) Nature of solvent used
(c) Number of solute particles present in it
(d) Number of moles of solvent only
(c)
16. Which of the following is not a colligative property?
(a) Optical activity
(b) Elevation in boiling point
(c) Osmotic pressure
(d) Lowering of vapour pressure
(a)
17. Which of the following aqueous solutions has the highest
boiling point?
(a) 0.1M KNO3
(b) 0.1M Na3PO4
(c) 0.1M BaCl2
(d) 0.1M K2SO4
(b)
18. Which has highest freezing point?
(a) 1 m K4[Fe(CN)6] solution
(b) 1 m C6H12O6 solution
(c) 1 m KCl solution
(d) 1 m rock salt solution
(b)
19. The relative lowering of the vapour pressure is equal to the
ratio between the number of
(a) Solute molecules and solvent molecules
(b) Solute molecules and the total molecules in the solution
(c) Solvent molecules and the total molecules in the solution
(d) Solvent molecules and the total number of ions of the solute
(b)
20.
(a)
(b)
(c)
(d)
()
21.
(a)
(b)
(c)
(d)
()
22.
(a)
(b)
(c)
(d)
()
23.
(a)
(b)
(c)
(d)
()
24.
(a)
(b)
(c)
(d)
()
25.
(a)
(b)
(c)
(d)
()
26.
(a)
(b)
(c)
(d)
()
27.
(a)
(b)
(c)
(d)
()
28.
(a)
(b)
(c)
(d)
()
29.
(a)
(b)
(c)
(d)
()
30.
(a)
(b)
(c)
(d)
()
31.
(a)
(b)
(c)
(d)
()
32.
(a)
(b)
(c)
(d)
()
33.
(a)
(b)
(c)
(d)
()
34.
(a)
(b)
(c)
(d)
()
35.
(a)
(b)
(c)
(d)
()
36.
(a)
(b)
(c)
(d)
()
37.
(a)
(b)
(c)
(d)
()
38.
(a)
(b)
(c)
(d)
()
39.
(a)
(b)
(c)
(d)
()
40.
(a)
(b)
(c)
(d)
()
41.
(a)
(b)
(c)
(d)
()
42.
(a)
(b)
(c)
(d)
()
43.
(a)
(b)
(c)
(d)
()
44.
(a)
(b)
(c)
(d)
()
45.
(a)
(b)
(c)
(d)
()
46.
(a)
(b)
(c)
(d)
()
47.
(a)
(b)
(c)
(d)
()
48.
(a)
(b)
(c)
(d)
()
49.
(a)
(b)
(c)
(d)
()
50.
(a)
(b)
(c)
(d)
()