JEE Main Chemistry question

An azo dye is fixed on fabrics by the process applicable in:

(A)Vat dyes
(B)Mordant dyes
(C)Developed dyesCorrect
(D)Substantive dyes

Answer: (C)

Solution

Azo (ingrain/developed) dyes are generated directly on the fabric by first impregnating it with one coupling component and then treating it with a diazonium salt solution — this in-situ formation is the 'developed dyes' process. Vat dyeing

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Question ID VK-151787