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>> The presence of free ammonia in sewage, is detected by___________________?
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Q. The presence of free ammonia in sewage, is detected by___________________?
a.
Boiling
b.
Adding potassium permanganate
c.
Adding sulphuric acid
d.
Phenol-di-sulphuric acid
ANSWER: Boiling
Answer & Explanation
No explanation is available for this question!
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