Which one is a functional group of carboxylic acid:
Correct answer: A. -COOH
- A. -COOH
- B. -COOC
- C. -C=O
- D. None of these
Explanation
The correct answer is -COOH because it is the functional group that defines carboxylic acids. The other options. represent different functional groups: -COO- for esters, -C=O for ketones, and -OH for alcohols.
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About Carboxylic Acids
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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