객관식
Which of the following is a functional group commonly found in organic molecules?
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2. Molecular Representations
Functional Groups
객관식
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
Carbonyl group
C
Hydroxyl group
D
Carboxyl group
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검증된 단계별 안내1
Identify the functional group described in the problem: a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group.
Recognize that this description matches the structure of a carboxyl group.
Understand that a carboxyl group is typically represented as \( \text{COOH} \) or \( \text{C(=O)OH} \).
Differentiate the carboxyl group from other functional groups: the amino group contains nitrogen, the carbonyl group is \( \text{C=O} \) without the hydroxyl, and the hydroxyl group is \( \text{OH} \) alone.
Conclude that the functional group characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group is indeed the carboxyl group.
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