Home Chemistry Chemistry In Every Day Life ( Not In Syllabus ) HARD Which one is acidic dye
Chemistry Chemistry In Every Day Life ( Not In Syllabus ) HARD Single Correct MCQ
Published on: August 11, 2026

Which one is acidic dye

A
Methyl orange
B
Methyl red
C
Phenolphthalein
D
All of these

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Verified by Experts
The correct answer is:
A

Acid dyes are characterised by the presence of – COOH , or Phenolic group. They are applied in the presence of acidic solution. They are usually applied to Wool, Silk, Nylon. They have affinity for cotton. Common examples are Orange I, Orange II, Methyl red etc.

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