To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Options: A . &nbspHydrochloric acid B . &nbspSulphuric acid C . &nbspNitric acid D . &nbspCitric acid

To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by

Question

To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of

Options:

A . Hydrochloric acid

B . Sulphuric acid

C . Nitric acid

D . Citric acid

Answer: Option B

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