(CH3)2C=CHCOCH3 can be oxidized to (CH3)2C=CHOCOOH by
Chromic acid
NaOI
Cu at 300°C
KMnO4
Correct answer: KMnO4
Solution
KMnO4 is a strong oxidizing agent that can oxidize the given compound to the corresponding keto acid, (CH3)2C=CHOCOOH. Other options are not suitable for this specific oxidation.