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Which type of chloramine is formed when pH of water is 4.4?

(a) Monachloramine

(b) Dichloramine

(c) Trichloramine

(d) Both monochloramine and dichloramine

I had been asked this question during an internship interview.

This interesting question is from Chlorination topic in chapter Properties of Disinfection of Environmental Engineering

1 Answer

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Best answer
Correct option is (b) Dichloramine

The best explanation: When the pH<4.4, then trichloramine is formed and when pH lies in the range 4.4-5, then only dichloramine is formed.

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