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MHT CET202619 April 2026Evening ShiftChemistryAldehydes and KetonesActual

What is the product formed on Rosenmund reduction of benzoyl chloride ?

Options

  1. ABenzene
  2. BBenzyl alcohol
  3. CBenzaldehyde
  4. DChlorobenzene

Correct answer

C. Benzaldehyde

Step-by-step solution

Rosenmund reduction is the catalytic hydrogenation of an acid chloride to an aldehyde. The reagent used is hydrogen gas in the presence of a palladium catalyst supported on barium sulfate ( H₂ / Pd-BaSO₄ ). When benzoyl chloride ( C₆H₅COCl ) is subjected to Rosenmund reduction, it is reduced to benzaldehyde ( C₆H₅CHO ). The reaction is: C₆H₅COCl + H₂ Pd/BaSO₄ C₆H₅CHO + HCl Therefore, the product formed is benzaldehyde. Answer: Benzaldehyde

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