Solutions Question 64

Question: Which one of the following statements is FALSE [AIEEE 2004]

Options:

A) The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is $ BaCl_2>KCl>CH_3COOH> $ sucrose.

B) The osmotic pressure $ (\pi ) $ of a solution is given by the equation $ \pi =MRT $ where M is the molarity of the solution.

C) Raoult’s law states that the vapour pressure of a component over a solution is proportional to its mole fraction.

D) Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression.

Show Answer

Answer:

Correct Answer: D

Solution:

The extent of depression in freezing point varies with the number of solute particles for a fixed solvent only and it is a characteristics feature of the nature of solvent also. So for two different solvents the extent of depression may vary even if number of solute particles be dissolved.



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