The pH value of oxidised sewage is about (A) 1.8 (B) 6.2 (C) 7.3 (D) 13.4

The pH value of oxidised sewage is about
(A) 1.8
(B) 6.2
(C) 7.3
(D) 13.4
by

1 Answer

Answer :

(C) 7.3
by

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