Question

Which of the following method can be used to separate salt from its solution in water?

• A. Separating funnel
• B. Simple distillation
• C. Filtration
• D. None of these

Answer 1

Answer: (B)

Simple distillation

A mixture of salt and water contains a volatile component, water. Simple distillation follows the process of evaporation and condensation.
So, when salt water is distilled, water evaporates and can be condensed and collected in a separate container. Salt being non-volatile remains behind in the distillation flask.

Separating funnel is generally used to separate a heterogenous mixture. Salt water being homogenous can not be separated by the method. Additionally, in the filtration method, larger solid particles separate out when the mixture is filtered using a filter paper. In salt water mixture, the particles are tiny and can easily pass through a filter paper and can not be separated by the method.

So, option B is correct.