Which is a colligative property? — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

Colligative properties depend only on the number of solute particles and not on their chemical identity. Among the given options, only osmotic pressure (π) is a colligative property. Vapour pressure, boiling point, and freezing point are physical properties of pure substances; their changes (relative lowering, elevation, depression) are the colligative properties.