1.00 g of non-electrolyte solute (molar mass 250 g mol^-1) was dissolved in 51.2 g of benzene. If the freezing point depression constant, K_f of benzene is 5.12 mol^-1 kg K, the freezing point of benzene will be lowered by:

1. 0.4 K

2. 0.3 K

3. 0.5 K

4. 0.2 K

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)

Aluminium phosphate is 100 % ionized in 0.01 m aqueous solution. Hence, $∆{\mathrm{T}}_{\mathrm{b}}/{\mathrm{k}}_{\mathrm{b}}$ is-

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

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