Which one of the following statements is FALSE:

The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is BaCl₂>KCL>CH₃COOH sucrose.

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The osmotic pressure (π) of a solution is given by the equation π=MRT where M is the molarity of the solution.

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Raoult's law states that the vapour pressure of a component over a solution is proportional to its mole fraction

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

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Solution

The correct option is D Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression.
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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Question 14
Which of the following statements is false?
(a) Two different solutions of sucrose of same molality prepared in different solvents will have the same depression in freezing point.
(b) The osmotic pressure of a solution is given by the equation $π = C R T$ (where, C is the molarity of the solution)
(c) Decreasing order of osmotic pressure for 0.01 M aqueous solutions of barium chloride, potassium chloride, acetic acid and sucrose is
$B a C l_{2} > K C l > C H_{3} C O O H > s u c r o s e$
(d) According to Raoult's law, the vapour pressure exerted by a volatile component of a solution is directly proportional to its mole fraction in the solution