Carboxylic acid contains:
Correct answer: C. A carboxyl group
- A. Hydroxyl group
- B. A hydroxyl group and carboxyl group
- C. A carboxyl group
- D. A carboxyl and aldehyde group
Explanation
A carboxyl group: This option is correct. Carboxylic acids are organic compounds that contain a carboxyl group (−COOH). The carboxyl group consists of a carbonyl group (C=O) and a hydroxyl group (−OH) attached to the same carbon atom. Therefore, the correct option is that carboxylic acids contain a carboxyl group.
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About Nomenclature, Structure and Preparation
Carboxylic acids are prepared by oxidising primary alcohols or aldehydes, hydrolysing nitriles, esters and amides, and carbonating suitable organometallic compounds. Their structures, IUPAC naming, resonance stabilisation and acidic character explain why carboxylic acids differ from alcohols and phenols, despite all containing oxygen and hydrogen.
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550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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