The reduction of aldehydes and ketones in the presence of zinc amalgam and HCl is termed as:
Correct answer: B. Clemmenson reduction
- A. Grignard reduction
- B. Clemmenson reduction
- C. Wolf-kishner reduction
- D. Friedel-craft reduction
Explanation
The Clemmensen reduction is a reaction that is used to reduce aldehydes or ketones to alkanes using hydrochloric acid and zinc amalgam. The Clemmensen reduction is named after a Danish chemist, Erik Christian Clemmensen.
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About Reactivity of Aldehydes and Ketones
The polar carbonyl group makes aldehydes and ketones undergo nucleophilic addition, reduction and condensation reactions. Aldehydes are generally more reactive and oxidise readily to carboxylic acids, whereas ketones resist mild oxidation; reactions with hydrogen cyanide, sodium bisulfite and 2,4-DNP help identify their behaviour.
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