But-2-ene on reaction with alkaline K M n O 4 at elevated temperature followed by acidification will give:

But-2-ene on reaction with alkaline KMnO4 at elevated temperature followed by acidification will give:
  1. 2 molecules of
  3. 2 Molecules of
  4. One molecular of and one molecular of

Solution

The reaction will be;

Asked in: JEE Main 2019 (12 Apr Shift 1)

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