The presence of free ammonia in sewage, is detected by________?

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AAdding sulphuric acid

BBoiling

CAdding potassium permanganate

DPhenol-di-sulphuric acid

Correct answer

B. Boiling

Explanation

The correct answer is Boiling.

The presence of free ammonia in sewage, is detected by________? - Answer and Explanation | Academy of Pakistan