A) Congo-red
B) Aniline black
C) Alizarin
D) Indigo
Correct Answer: B
Solution :
(i) Congo red is direct dye. (ii) Alizarin is anthraquinone dye. (iii) Aniline black is an uigrain dye. The last process of dyeing is done on fabric for such dyes-You need to login to perform this action.
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