Which of the following is not a colligative property ?
Correct answer: D. None of these
- A. Osmotic pressure
- B. Depression of freezing point
- C. Lowering of vapor pressure
- D. None of these
Explanation
Osmotic pressure, freezing-point depression, and vapour-pressure lowering all depend on the number of solute particles rather than their chemical identity, so all are colligative properties. Therefore, none of the listed properties is excluded.
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