Question

Colligative property is :
1. Osmotic pressure
2. Vapour pressure
3. Cohesive force
4. Surface tension

• A. 1, 2, 3
• B. 1, 2
• C. 2, 4
• D. 1, 3

Answer 1

The correct option is B 1, 2

Colligative properties are the characteristics of solutions which depend on the ratio of the number of solute particles to the number of solvent molecules in a solution. It does not depend on the quality of the chemical species present.

Colligative properties include vapor pressure, elevation of boiling point, depression of freezing point and osmotic pressure because, over here all depends only on the number of dissolved particles.

So, the correct answer is option B.