Question

Which separation technique is used for the separation of sodium chloride from its solution in water?

Answer 1

Evaporation:

1. The technique of evaporation can be used to separate sodium chloride from its solution in water.
2. Evaporation is a form of vaporization that involves the transition of liquid particles into the gaseous phase.
3. The liquid particles escape and enter the surrounding air as a gas when a molecule near the surface consumes enough energy to overcome the vapour pressure.
4. In this method, the sodium chloride solution is heated to facilitate evaporation of water leaving behind sodium chloride in the container.

Hence, evaporation can be used to separate sodium chloride from its solution in water.