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Question

Chemistry Question on Colligative Properties

The depression of freezing point is directly proportional to

A

mole fraction of the solution

B

molarity of the solution

C

molality of the solution

D

molarity of the solvent

Answer

molality of the solution

Explanation

Solution

ΔTf=Kfm\Delta T_f = K_f m ΔTfm\therefore \Delta T_f \propto m (molality of the solution ) Hence the lowering in vapour pressure will be maximum