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MHT CET202521 Apr 2025Morning ShiftChemistryAminesActual

Identify product A in following reaction. C ₆ H ₅ + N ₂ Cl ⁻ C ₂ H ₅ OH ~A + N ₂+ CH ₃ CHO + HCl

Options

  1. AC ₆ H ₆
  2. BC ₆ H ₅ NH ₂
  3. CC ₆ H ₅ COOH
  4. DC ₆ H ₅ Cl

Correct answer

A. C ₆ H ₆

Step-by-step solution

Benzenediazonium chloride with ethanol undergoes reduction where the diazonium group is replaced by hydrogen. The diazonium salt C₆H₅ + N₂ Cl⁻ is electrophilic and ethanol acts as a reducing agent, donating hydrogen while being oxidized to acetaldehyde. Nitrogen gas evolves, and hydrochloric acid forms from the chloride ion. The balanced reaction is: C₆H₅ + N₂ Cl⁻ + C₂H₅OH C₆H₆ + N₂ + CH₃CHO + HCl Comparing with the given transformation, A is benzene (C₆H₆) . Final answer: A

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