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The functional group of a carboxylic acid is

Correct answer: A. COOH

  • A. COOH
  • B. CHO
  • C. OH
  • D. CO

Explanation

The carboxyl group combines a carbonyl and a hydroxyl on the same carbon atom, and this arrangement makes the hydrogen far more acidic than in an alcohol, because the resulting carboxylate ion is stabilised by delocalisation. CHO is the aldehyde group and CO between two carbons is a ketone. Acids therefore liberate carbon dioxide from carbonates, which alcohols do not.

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About Functional Groups

Functional groups are specific atoms or atom groups that determine the characteristic reactions and properties of organic compounds. Coverage includes alkenes, alkynes, halo, hydroxyl, ether, carbonyl, carboxyl, ester, amino and nitro groups, together with their structures, nomenclature and related homologous series.

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