Question

A saturated solution of $NaCl$ on heating :

• A. becomes supersaturated.
• B. becomes unsaturated.
• C. remains saturated.
• D. vapourises.

Answer 1

The correct option is B becomes unsaturated.

When a saturated solution is heated, it becomes unsaturated, because it causes an increase in kinetic energy which leads to an increase in distance between the molecules of the liquid. So that the solute particles take free space present in the solvent.

That is why saturated solution becomes unsaturated on heating.

Hence, option $\left(B\right)$ is the correct answer.