For the COD test of sewage, organic matter is oxidised by K2Cr2O7 in the presence of________________?

Civil Engineering Mcqs

For the COD test of sewage, organic matter is oxidised by K2Cr2O7 in the presence of________________?

(A)  H2SO4

(B)  HNO3

(C)  HCl

(D)  None of these

Submitted By :Ali Uppal

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