Table of contents

2. Molecular Representations

Functional Groups

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Multiple Choice

Which of the following functional groups is present in an alcohol?

Hydroxyl group

Amino group

Carbonyl group

Carboxyl group

Verified step by step guidance

Identify the functional groups listed in the problem: Hydroxyl group, Amino group, Carbonyl group, and Carboxyl group.

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.

Understand the structure of each functional group: The hydroxyl group consists of an oxygen atom bonded to a hydrogen atom (\(

OH

\)).

Compare the functional groups: The amino group (\(

NH

₂\)) is found in amines, the carbonyl group (\(

C O

\)) is found in aldehydes and ketones, and the carboxyl group (\(

COOH

\)) is found in carboxylic acids.

Conclude that the hydroxyl group is the functional group present in alcohols, as it matches the definition and structure associated with alcohols.

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