Question

Which of the following procedures can be used to obtain water which is free from impurities?

• A. Distillation
• B. Boiling
• C. Filtration
• D. Adding chlorine tablet

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A

Distillation

B

Boiling

C

Filtration

D

Adding chlorine tablet

All the given methods are used to remove impurities from water.
In distillation, water is purified by a process of heating and cooling.
In boiling, water is heated at high temperature so that all the microorganisms get killed.
In filtration, small solids particles get separated with the help of filter paper.
Chlorine tablet acts as a disinfectant and kills the germs present in the water.