Which statement about a methyl functional group is correct?

• A. A methyl group consists of one carbon atom bonded to three hydrogen atoms, represented as ${\mathrm{CH}}_3$.
• B. A methyl group contains an oxygen atom bonded to a carbon atom.
• C. A methyl group is an aromatic ring containing six carbon atoms.
• D. A methyl group is a functional group with a nitrogen atom double-bonded to a carbon atom.

Answer: (A)

Verified step by step guidance

1. Understand that a methyl group is a common alkyl functional group in organic chemistry.
2. Recall that a methyl group consists of one carbon atom bonded to three hydrogen atoms, which can be represented as \(\mathrm{CH}_3\).
3. Recognize that a methyl group does not contain oxygen atoms; oxygen-containing groups are different functional groups such as hydroxyl (\(\mathrm{OH}\)) or carbonyl groups.
4. Know that an aromatic ring with six carbon atoms refers to a benzene ring, which is not a methyl group but a distinct structure.
5. Identify that a nitrogen atom double-bonded to a carbon atom describes an imine functional group, not a methyl group.