Which of the following compounds will give butanone on oxidation with alkaline KMnO4 solution?
Primary alcohol like Butan-1-ol on reaction with a very strong oxidizing agent like KMnO4 gives carboxylic acid. Thus, option (i) is wrong.
Secondary alcohol like Butan-2-ol gives ketone on oxidizing under the presence of KMnO4.
Thus, only option (ii) will give butanone.
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