Question
Which one of the following statements is FALSE ?
A.
The correct order of osmotic pressure for $$0.01 M$$ aqueous solution of each compound is $$BaC{l_2} > KCl > C{H_3}COOH > {\text{sucrose}}$$
B.
The osmotic pressure $$\left( \pi \right)$$ of a solution is given by the $$equatio{n_\pi } = MRT,$$ 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
Answer :
Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression
Solution :
$$\Delta {T_f} = {K_f} \times m \times i.$$ Since & $${K_f}$$ has different values for different solvents, hence even if the $$m$$ is the same $$\Delta {T_f}$$ will be different.