Easy MCQ +4 / -1 PYQ · JEE Mains 2023

In the depression of freezing point experiment

A. Vapour pressure of the solution is less than that of pure solvent

B. Vapour pressure of the solution is more than that of pure solvent

C. Only solute molecules solidify at the freezing point

D. Only solvent molecules solidify at the freezing point

Choose the most appropriate answer from the options given below :

  1. A A and C only
  2. B A only
  3. C A and D only Correct answer
  4. D B and C only

Solution

In the depression of freezing point experiment only solvent molecules solidify and vapour pressure of solution decreases as some of the surface area is occupied by solute molecules, so less number of molecules will go in vapour form.

About this question

Subject: Chemistry · Chapter: States of Matter · Topic: Gas Laws

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