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Multiple Choice
Which of the following functional groups is present in alcohols?
A
Amino group (-NH2)
B
Hydroxyl group (-OH)
C
Carboxyl group (-COOH)
D
Carbonyl group (C=O)
Verified step by step guidance
1
Identify the functional group associated with alcohols. Alcohols are characterized by the presence of a hydroxyl group.
Understand the structure of a hydroxyl group. It is represented as \(-OH\), where an oxygen atom is bonded to a hydrogen atom.
Compare the hydroxyl group with other functional groups listed: amino group \((-NH_2)\), carboxyl group \((-COOH)\), and carbonyl group \((C=O)\).
Recognize that the amino group \((-NH_2)\) is characteristic of amines, the carboxyl group \((-COOH)\) is found in carboxylic acids, and the carbonyl group \((C=O)\) is present in aldehydes and ketones.
Conclude that the hydroxyl group \((-OH)\) is the functional group present in alcohols, distinguishing them from other organic compounds.