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MHT CET Medical202626 April 2026Morning ShiftChemistryAminesActual

Which of the following compounds is converted to sulfanilic acid by sulfonation?

Options

  1. ABenzene
  2. BN-Methylmethanamine
  3. CAniline
  4. DPhenol.

Correct answer

C. Aniline

Step-by-step solution

Sulfanilic acid is p-aminobenzenesulfonic acid. Aniline reacts with concentrated sulfuric acid to form anilinium hydrogensulfate. Heating this salt at 453-473 K yields p-aminobenzenesulfonic acid, commonly known as sulfanilic acid, as the major product. Thus, aniline is converted to sulfanilic acid by sulfonation. Answer: Aniline

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