Which of the following is **not** a colligative property?
- Freezing point depression
- Osmotic pressure
- Boiling point elevation
- Density of solution
Show answer and 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.