MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketonesChemical Reactions of Carbonyl compounds

The reaction of acetaldehyde with conc. KMnO4 gives

A.CH3COOH✓ Correct

B.CH3CH2OH

C.HCHO

D.CH3OH

Explanation

When the aldehydes or ketones are oxidized, there is formation of carboxylic acid. Concentrated 퐾푀푛푂4is strong oxidizing agent. So, it will oxidize the acetaldehyde to acetic acid in single step. The reaction is given below: 퐶퐻3퐶퐻푂 푐표푛푐.퐾푀푛푂4 → 퐶퐻3퐶푂푂퐻

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