Home
Class 12
CHEMISTRY
In the depression of freezing point expe...

In the depression of freezing point experiment, it is found that the:

A

the vapour pressure of the solution is less than that of pure solvent .

B

the 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 physical.

Text Solution

Verified by Experts

The correct Answer is:
A, D
When a solute is added to a solvent, its vapour pressure becomes les and during freezing , only solvet molecules solidify. Therefore , statements(a) and (b) are correct.
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    MODERN PUBLICATION|Exercise COMPETITION FILE (D. MULTIPLE CHOICE QUESTIONS(MCQ))|13 Videos

  • SOLUTIONS

    MODERN PUBLICATION|Exercise COMPETITION FILE (MARTIX MATCH TYPE QUESTIONS)|2 Videos

  • SOLUTIONS

    MODERN PUBLICATION|Exercise COMPETITION FILE (B. MULTIPLE CHOICE QUESTIONS(MCQ))|77 Videos

  • SOLID STATE

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos

  • SURFACE CHEMISTRY

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) (MATCHING LIST TYPE QUESTIONS)|2 Videos

Similar Questions

Explore conceptually related problems

In the depression of freezing point experiment , it is found that : (P) the vapour pressure of the solution is less than that of pure solvent . (Q) the vapour pressure of the solution is more than that of pure solvent . (R) only solute molecules solidify at the freezing point . (S) only solvent molecules solidify at the freezing point .

In the depression of freezing point experimet, it is found that: I. The vapour pressure of the solution is less than that of pure solvent. II. The vapour pressure of the solution is more than that of pure solvent. III. Only solute molecules solidify at the freezing point. IV. Only solvent molecules solidify at the freezing point.

The depression of freezing point is directly proportional to

Depression in freezing point or cryoscopy

Cryoscopic constant is the depression in freezing point produced by :

The two isomers X and Y with the formula Cr(H_(2)O)_(5)ClBr were taken for experiment on depression in freezing point. It was found that one mole of X gave depression corresponding to 2 moles of particles and one mole of Y gave depression to 3 moles of particles. The structural formulae of X and Y raspectively are

MX_(2) dissociates into M^(2+) and X^(-) ions in an aqeous solution, with a degree dissociation (alpha) of 0.5. The ratio of the observed depression of freezing point of the aqueous solution to the value of the depression of freezing point in the absence of ionic dissociation is

Statement - I. Greater the molal depression constant of the solvent used less in the freezing point of the solution. Statement - II. Depression in freezing point depends upon the nature of the solvent.