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Multiple Choice
Which of the following functional groups is present in alcohols?
A
Carbonyl group (C=O)
B
Carboxyl group (-COOH)
C
Amino group (-NH2)
D
Hydroxyl group (-OH)
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.
Differentiate the hydroxyl group from other functional groups. For example, the carbonyl group (C=O) is found in aldehydes and ketones, the carboxyl group (-COOH) is found in carboxylic acids, and the amino group (-NH2) is found in amines.
Recognize that the hydroxyl group is responsible for the properties of alcohols, such as their ability to form hydrogen bonds, which affects their boiling points and solubility in water.
Conclude that the presence of the hydroxyl group (-OH) is the defining feature of alcohols, distinguishing them from other organic compounds with different functional groups.