Phenylmethyl ketone can be converted into ethyl benzene in one step by using:
Correct answer: B. Zn(Hg)-HCl
- A. LiAlH4
- B. Zn(Hg)-HCl
- C. NaBH4
- D. CH3MgI
Explanation
The reaction is Clemmensen reduction. The reaction of aldehydes and ketones with zinc amalgam (Zn/Hg alloy) in concentrated hydrochloric acid, which reduces the aldehyde or ketone to a hydrocarbon, is called Clemmensen reduction.
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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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