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MHT CET Medical202624 April 2026Morning ShiftChemistryAminesActual

Identify product 'B' in the following sequence of reactions. Aniline NaNO ₂+ HCl , 273 K A H ₂ O , B+ N ₂

Options

  1. ASodium phenoxide
  2. BPhenol
  3. CBenzenediazonium chloride
  4. DNitrobenzene

Correct answer

B. Phenol

Step-by-step solution

Aniline reacts with NaNO ₂ and HCl at 273 K to undergo diazotization, forming benzenediazonium chloride as product A. C ₆ H ₅ NH ₂ NaNO ₂ + HCl , 273 K C ₆ H ₅ N ₂^+ Cl ^- (Product A) Benzenediazonium chloride (A) on heating with water undergoes hydrolysis to yield phenol as product B along with the evolution of nitrogen gas. C ₆ H ₅ N ₂^+ Cl ^- H ₂ O , C ₆ H ₅ OH + N ₂ + HCl Thus, product B is phenol. Answer: Phenol

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