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Multiple Choice
Which of the following functional groups is present in alcohols?
A
Carboxyl group (-COOH)
B
Amino group (-NH2)
C
Hydroxyl group (-OH)
D
Carbonyl group (C=O)
Verified step by step guidance
1
Identify the functional groups listed in the problem: Carboxyl group (-COOH), Amino group (-NH2), Hydroxyl group (-OH), and Carbonyl group (C=O).
Recall the definition of an alcohol in organic chemistry: Alcohols are organic compounds that contain one or more hydroxyl groups (-OH) attached to a carbon atom.
Compare the functional groups listed with the definition of an alcohol. The hydroxyl group (-OH) is the characteristic functional group of alcohols.
Understand that 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 functional group present in alcohols is the hydroxyl group (-OH), as it matches the definition and characteristics of alcohols.