Question

Which method is used to separate a mixture of common salt and naphthalene powder?

Answer 1

Understanding the concept: Sublimation is the process of converting matter from a solid to a gaseous state without passing through a liquid state.

Explanation: The mixture of naphthalene and sodium chloride can be separated using the sublimation process because naphthalene is sublime, which means it turns into vapour without changing into liquid, and its vapour changes into solid without changing into liquid, whereas sodium chloride, is non-sublime in nature.