Question

The technique of sublimation is used to separate a mixture of

• A. Sand and stone
• B. Acetone and water
• C. Kerosene oil and water
• D. Camphor and sodium chloride

Answer 1

The correct option is D

Camphor and sodium chloride

Camphor is a sublimable volatile solid whereas sodium chloride is a non-sublimable solid. Sublimation is a technique used to separate the components of a mixture containing a sublimable volatile solid and a non-sublimable impurity. Therefore, the mixture of camphor and sodium chloride can be separated by the process of sublimation.