Which of the following statement is false?

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

Osmotic pressure is given by the expression$\mathrm{\pi }$ = MRT where, M is molarity

The correct order of osmotic pressures of 0.01 M aqueous solution of each compound is 

${\mathrm{BaCl}}_2>\mathrm{KCl}>{\mathrm{CH}}_3\mathrm{COOH}>\mathrm{Sucrouse}$

Two sucrose solutions of same molarity prepared in different solvents will have same freezing point depressions