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# But-2-ene on reaction with alkaline

Question:

But-2-ene on reaction with alkaline $\mathrm{KMnO}_{4}$ at elevated temperature followed by acidification will give :

1. one molecule of $\mathrm{CH}_{3} \mathrm{CHO}$ and one molecule of $\mathrm{CH}_{3} \mathrm{COOH}$

2. 2 molecules of $\mathrm{CH}_{3} \mathrm{COOH}$

3. 2 molecules of $\mathrm{CH}_{3} \mathrm{CHO}$

Correct Option: , 3

Solution: