Which of the following compounds will give butanone on oxidation with alkaline KMnO₄ solution? 

A: Butan-1-ol 

B: Butan-2-ol

C: Both

D: None of these

This is a Multiple Choice Type Questions as classified in NCERT Exemplar

Correct option: B

When a primary alcohol, such as Butan-1-ol, reacts with a powerful oxidising agent, such as KMnO₄, it produces carboxylic acid, however when a secondary alcohol, such as Butan-2-ol, is oxidised under the pressure of KMnO₄, it produces ketone. As a result, option B is right.

<p>This is a Multiple Choice Type Questions as classified in NCERT Exemplar</p><p><strong>Correct option: B</strong></p><div class="photo-widget-full"><div class="figure"><picture><source srcset="" media=" (max-width: 500px)"><img src="https://images.shiksha.com/mediadata/images/1750767957php9M5J9d.jpeg" alt="" width="405" height="112" loading="lazy"></picture></div></div><p>When a primary alcohol, such as Butan-1-ol, reacts with a powerful oxidising agent, such as <strong>KMnO₄</strong>, it produces carboxylic acid, however when a secondary alcohol, such as Butan-2-ol, is oxidised under the pressure of <strong>KMnO₄</strong>, it produces ketone. As a result, option B is right.</p>

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