Solutions · Question 53

Mixture of chloroform and acetone forms a solution with negative deviation from Raoult's law due to :

1. Stronger intermolecular forces between chloroform molecules than those between chloroform and acetone molecules
2. Formation of hydrogen bonding between acetone and chloroform
3. Repulsive forces
4. Increase in escaping tendency of molecules of each component

Identify the correct statements : Choose the correct answer from the options given below :

1. A, B and C only
2. A, D and E only
3. A and B only
4. A and C only

Consider the following statements about the solutions formed by mixing two liquids.

1. A and C only
2. A and B only
3. B and C only
4. A only

In the light of the above statements, choose the most appropriate answer from the options given below.

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct but R is NOT the correct explanation of A
4. A is correct but R is not correct

Which of the following aqueous solution will exhibit highest boiling point?

1. 0.01 M Na2SO4
2. 0.015 M C6H12O6
3. 0.01 M Urea
4. 0.01 M KNO3

Match List-I with List-II Choose the correct answer from the options given below:

1. A-III, B-I, C-IV, D-II
2. A-III, B-II, C-I, D-IV
3. A-II, B-IV, C-I, D-III
4. A-II, B-I, C-IV, D-III

5 moles of liquid X and 10 moles of liquid Y make a solution having a vapour pressure of 70 torr. The vapour pressures of pure X and Y are 63 torr and 78 torr respectively. Which of the following is true regarding the described solution?

1. The solution is ideal.
2. The solution has volume greater than the sum of individual volumes.
3. The solution shows positive deviation.
4. The solution shows negative deviation.

The Henry's law constant (KH) values of three gases (A, B, C) in water are 145, 2 10-5 and 35 kbar respectively. The solubility of these gases in water follows the order:

1. B > A > C
2. B > C > A
3. A > C > B
4. A > B > C

The plot of osmotic pressure ( ) vs concentration ( mol L-1) for a solution gives a straight line with slope 25.73 L bar mol-1. The temperature at which the osmotic pressure measurement is done is (Use R = 0.083 L bar mol-1 K-1)

1. 37
2. 310
3. 25.73
4. 12.05

Arrange the following compounds in increasing order of their solubilities in chloroform: NaCl, CH3OH, cyclohexane, CH3CN

1. NaCl < CH3CN < CH3OH < Cyclohexane
2. CH3OH < CH3CN < NaCl < Cyclohexane
3. NaCl < CH3OH < CH3CN < Cyclohexane
4. Cyclohexane < CH3CN < CH3OH < NaCl