JEE Main Chemistry question

Which one is a colligative property? [OJEE 2007]

(A)Boiling point
(B)Vapour pressure
(C)Osmotic pressureCorrect
(D)Freezing point

Answer: (C)

Solution

The boiling point, vapour pressure and freezing point of the pure solvent are themselves not colligative properties; it is their elevation/depression/lowering upon adding solute that is

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Question ID VK-143077