Which gas is used in the purification of drinking water

A)
Fluorine
B)
Helium
C)
Carbon dioxide
D)
Chlorine

Correct Answer : Option (D) - Chlorine



The technique of purification of drinking water by use of compressed liquefied chlorine gas was developed by a British officer in the Indian Medical Service, Vincent B.

Published On : June 9, 2021
Category : Science and Technology