Which of the following is a characteristic functional group of alcohols?
A
Carboxyl group ()
B
Amino group ()
C
Carbonyl group ()
D
Hydroxyl group ()
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1
Identify the functional groups listed in the problem: Carboxyl group (-COOH), Amino group (-NH2), Carbonyl group (C=O), and Hydroxyl group (-OH).
Understand the definition of a functional group: A functional group is a specific group of atoms within a molecule that is responsible for a characteristic chemical reaction of that molecule.
Recognize that alcohols are organic compounds characterized by the presence of a hydroxyl group (-OH).
Compare the functional groups: The carboxyl group (-COOH) is characteristic of carboxylic acids, the amino group (-NH2) is characteristic of amines, and the carbonyl group (C=O) is found in aldehydes and ketones.
Conclude that the hydroxyl group (-OH) is the characteristic functional group of alcohols, as it is responsible for the properties and reactions typical of alcohols.