Which of the following is **not** a colligative property?
AFreezing point depression
BOsmotic pressure
CBoiling point elevation
DDensity of solution
Answer & Solution
Correct answer: D. Density of solution
Colligative properties depend only on the number of solute particles, not their identity: VP lowering, BP elevation, FP depression, osmotic pressure. Density depends on the specific solute, so it is not a colligative property.
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