Question

Tick(√) the correct alternative from the given options for the following statement:

Common salt is obtained from sea water by-

• A. Distillation
• B. Crystallisation
• C. Evaporation
• D. Sublimation

Answer 1

The correct option is C

Evaporation

Evaporation

• On heating a given solution at a specific temperature, the solvent(major component) starts vaporising into the atmosphere leaving behind the solute(minor component) as residue.
• Common Salt(NaCl) is obtained from the sea water through the process of evaporation.

Distillation

• When a solution is converted to vapour on heating and then when its vapour is condensed back to liquid form in another vessel, this process is known as Distillation.

Crystallisation seawater

• When a solid is obtained from a solution on freezing or directly deposited from its gas wherein the combining atoms are arranged in a regular pattern, this process is known as Crystallisation.

Sublimation

• When a solid matter changes its state to a gaseous state directly skipping the intermediate state (of liquid) is known as Sublimation.

Therefore, Option (C) is correct. Common salt is obtained from seawater by evaporation.