But-2-ene on reaction with alkaline KMnO4 at elevated temperature followed by acidification will give:
Hydrocarbons · Class 11 · JEE Main Previous Year Question
But-2-ene on reaction with alkaline at elevated temperature followed by acidification will give:
- a
One molecule of and one molecule of
- b
- c✓
2 molecules of
- d
2 molecules of
2 molecules of
Step 1: Identify Oxidation Conditions
Hot alkaline = oxidative cleavage of the double bond.
Cold dilute gives diol; hot conc. gives cleavage.
Key Points:
- Hot alk. : ; ketone;
- Both carbons in but-2-ene are type with group, so both give acetic acid
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