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Which of the following oxidising agents is used to obtain carboxylic acids directly from alcohols?

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Which of the following oxidising agents is used to obtain carboxylic acids directly from alcohols?

(a) Acidified KMnO4

(b) Aqueous KMnO4

(c) Alkaline KMnO4

(d) Anhydrous CrO3

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I want to ask this question from Alcohols and Phenols topic in section Alcohols, Phenols and Ethers of Chemistry – Class 12

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The correct answer is (a) Acidified KMnO4

Explanation: Strong oxidising agents like acidified potassium permanganate or acidified potassium dichromate convert alcohol directly to carboxylic acid. However, only aldehyde can be obtained by using CrO3 as the oxidising agent in an anhydrous medium.

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