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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
Amino group
B
Hydroxyl group
C
Carbonyl group
D
Carboxyl group
Verified step by step guidance
1
Identify the functional groups listed in the problem: amino group, hydroxyl group, carbonyl group, and carboxyl group.
Understand the structure of each functional group: An amino group contains a nitrogen atom bonded to hydrogen atoms. A hydroxyl group consists of an oxygen atom bonded to a hydrogen atom. A carbonyl group features a carbon atom double-bonded to an oxygen atom.
Recognize that a carboxyl group is characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group (OH).
Compare the structural characteristics of the carboxyl group with the description given in the problem: a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group.
Conclude that the functional group described in the problem is the carboxyl group, as it matches the structural description provided.