Question
Identify the compound formed when But-2-ene is treated with KMnO _4 in dilute H _2 SO _4.
Identify the compound formed when But-2-ene is treated with KMnO _4 in dilute H _2 SO _4.
B. Acetic acid
But-2-ene has the structure CH _3- CH = CH - CH _3. When treated with acidic KMnO _4 ( KMnO _4 in dilute H _2 SO _4), it undergoes oxidative cleavage. The strong oxidizing agent completely breaks the carbon-carbon double bond, oxidizing each of the resulting fragments into a carboxylic acid. CH _3- CH = CH - CH _3 KMnO _4, H ^+ 2 CH _3 COOH The product formed is acetic acid (ethanoic acid). Answer: Acetic acid
Related: Chemistry — Hydrocarbons · All PYQ Banks