MHT CET202620 April 2026Morning ShiftChemistryHydrocarbonsActual
Which of the following alkenes on oxidation by KMnO ₄ in dil H ₂ SO ₄ forms adipic acid ?
Options
- AHex-1-ene
- BHex-2-ene
- CHex-3-ene
- DCyclohexene
Correct answer
D. Cyclohexene
Step-by-step solution
Oxidation of alkenes with acidic KMnO ₄ leads to the cleavage of the carbon-carbon double bond, converting the vinylic carbons into carboxylic acids, ketones, or CO ₂ depending on the substitution. Cyclohexene is a cyclic alkene with a six-membered ring. Upon oxidative cleavage, the ring opens to form a straight-chain dicarboxylic acid with six carbon atoms. The reaction is: Cyclohexene KMnO ₄, H ^+ HOOC -( CH ₂)₄- COOH (Adipic acid). Hex-1-ene gives pentanoic acid and CO ₂ . Hex-2-ene gives acetic acid and butanoi