
Assertion:- When Benzoic acid is dissolved in benzene its vant Hoff factor is less than one.
Reason:- In benzene, benzoic acid has tendency to form dimer.

Important Questions on Solutions
Assertion:- van't Hoff factor for benzoic acid in benzene is one.
Reason:- Benzoic acid behaves as a weaker electrolyte in benzene.

Assertion:- van't Hoff factor is always more or equal to one.
Reason:- van't Hoff factor is the ratio of experimental colligative properties to observed colligative properties.

Assertion:- Azeotropic mixture can not be separated by fractional distillation.
Reason:- Azeotropic mixtures are constant boiling mixtures.

Assertion:- and for the preparation of ideal solution is zero.
Reason :- interactions in ideal solution are same as between and in the two liquids before mixing.

Assertion:- solution of have low freezing point than urea solution.
Reason:- Van't Hoff factor (No. of particles) for is more than urea.

Reason: Because colligative properties depends on molarity only.

Assertion:- On mixing aniline and Acetone shows deviation.
Reason: - Interaction between Acetone and aniline is weaker than interaction of Acetone-Acetone and aniline-aniline.

Assertion:- When two volatile liquids are mixed then vapour pressure of one increases and other decreases.
Reason:- Vapour pressure of solution decreases.
