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 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

The unit of Ebullioscopic constant is:

1. K kg mol^-1 or K (molality)^-1

2. mol kg K^-1 or K^-1 (molality)

3. kg mol^-1 K^-1 or K^-1 (molality)^-1

4. K mol kg^-1 or K (molality)

In comparison to a 0.01 M solution of glucose, the depression in the freezing point of a 0.01 M MgCl₂ solution will be  -

Match the laws given in Column I with expressions given in Column II.

Codes

Preservation of fruits against bacterial action by adding sugar is an example of-

1. Exosmosis

2. Reverse-osmosis

3. Diffusion

4. Capillary action

The partial pressure of ethane over a solution containing 6.56 × 10^–2 g of ethane is 1 bar. If the solution contains 5.00 × 10^–2 g of ethane, the partial pressure of the gas will be -

1. 0.66 bar

2. 0.96 bar

3. 0.76 bar

4. 0.19 bar

The positive deviations from Raoult’s law mean the vapour pressure is:

1. Higher than expected.
2. Lower than expected.
3. As expected.
4. None of the above

The type of inter molecular interactions present in

The amount of benzoic acid (C₆H₅COOH) required for preparing 250 mL of 0.15 M solution in methanol is -