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MHT CET202617 April 2026Morning ShiftChemistryHydrocarbonsActual

Alkenes on oxidation with KMnO ₄ in dil H ₂ SO ₄ forms

Options

  1. AAlkanol
  2. BAlkanal
  3. CAlkanone
  4. DAlkanoic acid

Correct answer

D. Alkanoic acid

Step-by-step solution

Alkenes undergo oxidative cleavage when treated with a strong oxidizing agent like KMnO ₄ in acidic medium (dilute H ₂ SO ₄ ). During this reaction, the carbon-carbon double bond is completely cleaved. A = CH - group is initially oxidized to an aldehyde (alkanal), which is highly susceptible to further oxidation under these conditions and immediately oxidizes to a carboxylic acid (alkanoic acid). For example: R - CH = CH - R ' KMnO ₄ / H ^+ R - COOH + R '- COOH Thus, the final stable product formed is an alkanoic a

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