For plain chlorination of water, the quantity of chlorine used, is (A) 0.1 mg/litre (B) 0.2 mg/litre (C) 0.3 mg/litre (D) 0.5 mg/litre

For plain chlorination of water, the quantity of chlorine used, is
(A) 0.1 mg/litre
(B) 0.2 mg/litre
(C) 0.3 mg/litre
(D) 0.5 mg/litre
by

1 Answer

Answer :

(D) 0.5 mg/litre
by

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