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Multiple Choice
Which of the following is not a functional group commonly found in organic molecules?
A
Ethylene group
B
Hydroxyl group
C
Carbonyl group
D
Amino group
Verified step by step guidance
1
Identify the functional groups listed in the problem: Ethylene group, Hydroxyl group, Carbonyl group, and Amino group.
Understand the definition of a functional group: A functional group is a specific group of atoms within a molecule that is responsible for a characteristic chemical reaction of that molecule.
Review the common functional groups in organic chemistry: Hydroxyl group (\(\text{-OH}\)), Carbonyl group (\(\text{C=O}\)), and Amino group (\(\text{-NH}_2\)) are all well-known functional groups.
Consider the ethylene group: Ethylene (\(\text{C}_2\text{H}_4\)) is a simple alkene, not a functional group. It is a molecule with a carbon-carbon double bond, but it is not classified as a functional group like the others.
Conclude that the ethylene group is not a functional group commonly found in organic molecules, unlike the hydroxyl, carbonyl, and amino groups.