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.
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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.
