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MCQEasyJEE Main 2025 · 29 January, Shift 2Diazonium Salts & Reactions

Chemistry Question from JEE Main 2025 · 29 January, Shift 2

Which one of the following reaction sequences will give an azo dye?

  • A
    Reaction sequence starting from nitrobenzene with reagents Sn/HCl, then NaNO2/HCl, then beta-naphthol and NaOH, leading to azo dye formation pathway.
  • B
    Reaction sequence starting from benzenesulfonic acid with reagents SOCl2, then NH3, then chloromethylbenzene derivative, not corresponding to azo dye formation.
  • C
    Reaction sequence starting from benzonitrile with reagents 70 percent H2SO4, then PCl5, then aniline-like product, unrelated to diazotization and azo dye coupling.
  • D
    Reaction sequence starting from aniline with HCl and NaNO2 followed by toluene coupling partner shown, not the standard beta-naphthol azo dye sequence.

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