The value of Henry's law constant:

1.	Increases with increase in temperature.
2.	Decreases with increase in temperature.
3.	Increases with decrease in temperature.
4.	Independent of temperature and depend only on pressure.

40% (w/V) of NaCl solution (density = 1.14 g/ml) is equivalent to: 
1. $0.35\times {10}^5<mspace\; width="1em"></mspace>ppm$
2. $4\times {10}^6<mspace\; width="1em"></mspace>ppm$
3. $3.5\times {10}^6<mspace\; width="1em"></mspace>ppm$
4. $0.35\times {10}^6<mspace\; width="1em"></mspace>ppm$

The freezing point of depression constant (K_f ) of benzene is 5.12 K kg mol^–1. The freezing point depression for the solution of molality 0.078 m containing a non-electrolyte solute in benzene is:

1. 0.80 K
2. 0.40 K
3. 0.60 K
4. 0.20 K

The azeotropic mixture of water and ethanol boils at 78.15 ^oC. When this mixture is distilled, it is possible to obtain-

1. Pure H₂O

2. Pure C₂H₅OH

3. Pure H₂O as well as pure C₂HOH

4. Neither H₂O nor C₂H₅OH in their pure state 

The correct statement regarding a solution of two components A and B exhibiting positive deviation from ideal behaviour is :

On dissolving sugar in water at room temperature solution feels cool to touch. Dissolution of sugar will be most rapid under the following case is:

1.  Sugar crystals in cold water
2.  Sugar crystals in hot water
3.  Powdered sugar in cold water
4.  Powdered sugar in hot water

Colligative properties are dependent on which of the following factors?

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

Which of the following mixtures forms the maximum boiling azeotrope?

For an ideal solution, the correct option is:

1. ${∆}_{\mathrm{mix}}$ $\mathrm{G}=0$ at constant T and P

2. ${∆}_{\mathrm{mix}}$ $\mathrm{S}=0$ at constant T and P

3. ${∆}_{\mathrm{mix}}$ $\mathrm{V}\ne 0$ at constant T and P

4. ${∆}_{\mathrm{mix}}$ $\mathrm{H}=0$ at constant T and P