The complete reduction carboxylic acid results in the formation of________________?
Correct answer: C. Alkane
- A. Alkyne
- B. Alkene
- C. Alkane
- D. Alcohol
Explanation
Complete reduction of a carboxylic acid removes the oxygen functionality and gives the corresponding alkane, for example RCOOH -> RCH3 under vigorous reduction. Partial reduction can instead give a primary alcohol, but that is not complete reduction. The common mistake is choosing alcohol because carboxylic acids are readily reduced to alcohols under ordinary reducing conditions.
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About Reactivity of Carboxylic Acids
Carboxylic acids show acidic behaviour because their carboxylate ions are resonance-stabilised, and electron-withdrawing groups can change their strength. Reactions include neutralisation, esterification, formation of acid chlorides and amides, reduction, decarboxylation and substitution at the acyl carbon, which differs from the reactions of phenols.
Practise Carboxylic Acids
550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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