Q. Which of the following is NOT a colligative property?
✅ Correct Answer: (D)
Color change
Explanation: Colligative properties depend only on the number of solute particles, not their identity: boiling point elevation, vapor pressure lowering, freezing point depression, and osmotic pressure are colligative. Color change depends on the chemical identity (electronic transitions) of substances and is not colligative.
Explanation by: Sikhar Chaudhary
Colligative properties depend only on the number of solute particles, not their identity: boiling point elevation, vapor pressure lowering, freezing point depression, and osmotic pressure are colligative. Color change depends on the chemical identity (electronic transitions) of substances and is not colligative.