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Multiple Choice
Which functional group is characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group?
A
Carboxyl group
B
Aldehyde group
C
Ether group
D
Ketone group
Verified step by step guidance
1
Identify the functional groups listed in the problem: Carboxyl group, Aldehyde group, Ether group, and Ketone group.
Understand the structural characteristics of each functional group. A carboxyl group is characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group.
Recognize the structural formula of a carboxyl group, which can be represented as , where is the rest of the molecule.
Compare the structural formula of the carboxyl group with the other options: Aldehyde (), Ether (), and Ketone ().
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.