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A phenyl group is a benzene ring attached to another molecule, represented as C6H5-. It is a common aromatic group in organic chemistry.
A benzyl group consists of a phenyl ring attached to a CH2- group, represented as C6H5CH2-.
Here are some examples:
Phenyl:
Phenol: C6H5OH - a benzene ring attached to a hydroxyl group.
Benzyl:
Benzyl alcohol: C6H5CH2OH - a benzene ring attached to a CH2OH group.
Benzyl chloride: C6H5CH2Cl - a benzene ring attached to a CH2Cl group.