Which one of the following statements is false?

The correct order of osmotic pressure for 0.01m aqueous solutions of each compound is ${\mathrm{BaCl}}_2>\mathrm{KCl}>{\mathrm{CH}}_3\mathrm{COOH}>\mathrm{sucrose}$

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

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

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