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Which color is formed when orthotolidine is oxidized by chlorine?

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Which color is formed when orthotolidine is oxidized by chlorine?

(a) Yellow

(b) Orange

(c) Green

(d) Blue

I have been asked this question during a job interview.

I'd like to ask this question from Forms of Chlorination topic in portion Properties of Disinfection of Environmental Engineering

1 Answer

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Best answer
Right choice is (a) Yellow

Easy explanation: Orthotolidine is a colorless organic liquid that is oxidized into a yellow colored compound called Holoquinone.

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