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Multiple Choice
Which of the following functional groups is present in an alcohol molecule?
A
Amino group (-NH2)
B
Hydroxyl group (-OH)
C
Carbonyl group (C=O)
D
Carboxyl group (-COOH)
Verified step by step guidance
1
Identify the functional groups listed in the problem: amino group (-NH2), hydroxyl group (-OH), carbonyl group (C=O), and carboxyl group (-COOH).
Recall the definition of an alcohol in organic chemistry: an alcohol is an organic compound that contains one or more hydroxyl groups (-OH) attached to a carbon atom.
Understand that the hydroxyl group (-OH) is the characteristic functional group of alcohols, which distinguishes them from other types of organic compounds.
Compare the functional groups provided in the problem with the definition of an alcohol. The hydroxyl group (-OH) matches the functional group present in alcohols.
Conclude that the functional group present in an alcohol molecule is the hydroxyl group (-OH).