# Which one of the following is considered as colligative property?

$\begin{array}{1 1}(a)\;\text{Latent heat of vaporization}\\(b)\;\text{Osmotic pressure}\\(c)\;\text{Free energy}\\(d)\;\text{Change in pressure}\end{array}$

Osmotic pressure is considered as colligative property.
Hence (b) is the correct answer.