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Dyeing industry uses which of the mentioned process?

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Dyeing industry uses which of the mentioned process?

(a) Diazotization and coupling

(b) Hydroxylation

(c) Oligomerization

(d) Pyrolsis

I had been asked this question in an online quiz.

Origin of the question is Unit Process topic in section Unit Operations and Unit Process of Chemical Technology

1 Answer

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The correct option is (a) Diazotization and coupling

Explanation: Most of the dyeing industries involve diazotization and coupling of organic compounds to produce dyes like rosaniline etc.

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