What occurs when carbonyl compounds react with HCN
Correct answer: B. Pentan-2-one and HCN react to give a chiral product
- A. The reaction is catalyzed by concentrated H₂SO₄
- B. Pentan-2-one and HCN react to give a chiral product
- C. The reaction is a condensation reaction
- D. The reaction is nucleophilic substitution
Explanation
Pentan-2-one and HCN react to give a chiral product - Correct. The addition of HCN to an asymmetric ketone produces a chiral cyanohydrin.
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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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