Benzenediazonium chloride couples with phenol in mild alkali to give which coloured dye?
AHydroxyazobenzene (orange)
BAniline yellow (blue)
CMethyl red (green)
DIndigo dye (violet)
Answer & Solution
Correct answer: A. Hydroxyazobenzene (orange)
Coupling with phenol gives the orange azo dye p-hydroxyazobenzene.
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