The value of Henry's constant KH -
1. Increases with increase in temperature.
2. Decreases with increase in temperature.
3. Remains constant.
4. First increases then decreases.
The value of Henry's constant, KH is ......... .
1. Greater for gases with higher solubility.
2. Greater for gases with lower solubility.
3. Constant for all gases.
4. Not related to the solubility of gases.
The strength of intermolecular forces between two benzene molecules is approximately equivalent to that between two toluene molecules.
a. | ΔHmix= zero |
b. | ΔVmix = Zero |
c. | They will form a minimum boiling azeotrope |
d. | They will not form an ideal solution |
Identify the incorrect statements (from a to d given above) regarding a mixture of benzene and toluene:
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
For a binary ideal liquid solution, the curve that represents the variation in total vapor pressure versus composition of the solution is:
a. | b. | ||
c. | d. |
The correct option is:
1. | a and b | 2. | b and c |
3. | c and d | 4. | a and d |
An aqueous solution of 2% non-volatile solute exerts a pressure of 1.004 bar at the normal boiling point of the solvent. The molar mass of the solute is -
1. 53.50 g mol-1
2. 43.5 kg mol-1
3. 22.6 kg mol-1
4. 41.35 g mol-1
At a given temperature, osmotic pressure of a concentrated solution of a substance:
1. | is higher than that of a dilute solution. |
2. | is lower than that of a dilute solution. |
3. | is same as that of a dilute solution. |
4. | cannot be compared with osmotic pressure of dilute solution. |
An unripe mango placed in a concentrated salt solution to prepare pickle shrivels because -
1. It gains water due to osmosis.
2. It loses water due to reverse osmosis.
3. It gains water due to reverse osmosis.
4. It loses water due to osmosis.
A solution that has the highest boiling point among the following is -
1. 1.0 M NaOH
2. 1.0 M Na2SO4
3. 1.0 M NH4NO3
4. 1.0 M KNO3
Colligative properties depend on:
1. | The nature of the solute particles dissolved in the solution. |
2. | The number of solute particles in the solution. |
3. | The physical properties of the solute particles dissolved in the solution. |
4. | The nature of solvent particles. |
A beaker contains a solution of substance 'A' . Precipitation of substance ‘A’ takes place when small amount of 'A' is added to the solution. The solution is -
1. Saturated.
2. Supersaturated.
3. Unsaturated.
4. Concentrated.