Ketones undergo reaction with which compound in the presence of acid to form oximes?
Correct answer: B. Hydroxyl amin
- A. Hydroxy methane
- B. Hydroxyl amin
- C. Phenyl hydrazine
- D. None of these
Explanation
Oximes are formed by the reaction of ketones or aldehydes with hydroxylamine (NH2OH) in the presence of an acid catalyst. The reaction proceeds via nucleophilic addition of hydroxylamine to the carbonyl group, followed by dehydration.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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