Reduction of acetaldehyde with H2/Ni gives:
Correct answer: A. Ethanol
- A. Ethanol
- B. Ethanoic acid
- C. Ethane
- D. Ethylene
Explanation
H2/Ni are strong reducing agents which reduces aldehydes to primary alcohols and ketones to secondary alcohols.
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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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