Which functional group is characterized by a carbonyl group covalently bonded to both a nitrogen atom and a carbon chain?
Answer and explanation
Correct answer: A. Amide
An amide has the general structure R-C(=O)-NR'R'', where a carbonyl group (C=O) is directly attached to a nitrogen atom. An amine has nitrogen bonded to carbon or hydrogen without an adjacent carbonyl (R-NH2), an ester is R-C(=O)-OR', and a carboxylic acid is R-C(=O)-OH.
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