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Which of the following has two carboxyl groups in its structure?(a) Succinic acid(b) Crotonic acid(c) Cinnamic acid(d) Mandelic acidThe question was asked in unit test.Question is taken from Nomenclature and Structure of Carboxyl Groups topic in division Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

Answer»

The correct choice is (a) Succinic ACID

The explanation is: Succinic acid is a dicarboxylic acid with 4 carbon atoms in its structure. Its IUPAC name is butanedioic acid. Crotonic acid is but-2-enoic acid, whereas cinnamic acid and mandelic acid consists only a SINGLE CARBOXYL group along with a PHENYL group.



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