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Multiple Choice
Which of the following functional groups contains a nitrogen atom?
A
Alcohol
B
Ketone
C
Aldehyde
D
Amine
Verified step by step guidance
1
Identify the functional groups listed in the problem: Alcohol, Ketone, Aldehyde, and Amine.
Understand the structure of each functional group: Alcohols contain an -OH group, Ketones have a carbonyl group (C=O) within the carbon chain, Aldehydes have a carbonyl group (C=O) at the end of the carbon chain, and Amines contain a nitrogen atom bonded to one or more alkyl groups.
Recognize that the presence of a nitrogen atom is a key characteristic of amines. Amines are derivatives of ammonia (NH₃) where one or more hydrogen atoms are replaced by alkyl or aryl groups.
Compare the structures: Alcohols, Ketones, and Aldehydes do not contain nitrogen atoms. Amines, however, do contain nitrogen atoms, which distinguishes them from the other functional groups listed.
Conclude that the functional group containing a nitrogen atom is the Amine, based on the structural analysis of each group.