Which is used for sterilization of water in water supply system of cit

1.	Which is used for sterilization of water in water supply system of cities
A.	Chlorine
B.	Sulphurdioxide
C.	Potassium permanganate
D.	DDT
Answer» B. Sulphurdioxide

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Which is used for sterilization of water in water supply system of cities

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