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MHT CET202611 April 2026Morning ShiftChemistryAldehydes and KetonesActual

Acetaldehyde, when heated in the presence of sodium hydroxide and iodine forms

Options

  1. ASodium formate
  2. BSodium acetate
  3. CEthanol
  4. DIodoethane

Correct answer

A. Sodium formate

Step-by-step solution

Acetaldehyde ( CH₃CHO ) contains a CH₃-CO- group, so it undergoes the iodoform reaction when heated with iodine and sodium hydroxide. The reaction proceeds as follows: CH₃CHO + 3I₂ + 4NaOH CHI₃ + HCOONa + 3NaI + 3H₂O The products formed are iodoform ( CHI₃ ) as a yellow precipitate and sodium formate ( HCOONa ). Answer: Sodium formate

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