All of the following reagents reduce aldehydes and ketones to theirrespective alcohols EXCEPT:
Correct answer: C. N2H2/KOH
- A. H2/Ni
- B. LiAIH4
- C. N2H2/KOH
- D. NaBH4
Explanation
Option C is correct.N2H2/KOH is a reducing agent that is often used to reduce aldehydes to amines. It is not a good choice for reducing ketones to alcohols.
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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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