Which one of the following gases is used for the purificatio - Exam Yatra

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Conservations - Water, Air, Minerals
Ecology and Environments
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Ecology and Environments

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M: +2.00/-0.50

Which one of the following gases is used for the purification of drinking water?

U.P.P.C.S. (Pre) 2013

[Conservations - Water, Air, Minerals]

A

Sulphur dioxide

B

Chlorine

C

Fluorine

D

Carbon dioxide

EXPLANATION

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