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Multiple Choice
Which of the following functional groups is characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group?
A
Carbonyl group
B
Carboxyl group
C
Amino group
D
Hydroxyl group
Verified step by step guidance
1
Identify the functional groups listed in the problem: Carbonyl group, Carboxyl group, Amino group, and Hydroxyl group.
Understand the structure of each functional group: A carbonyl group (C=O) consists of a carbon atom double-bonded to an oxygen atom.
Recognize that a carboxyl group (COOH) consists of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group (OH).
Compare the structures: The carboxyl group matches the description given in the problem, as it has both a carbonyl (C=O) and a hydroxyl (OH) component.
Conclude that the functional group characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group is the carboxyl group.