Which of the following functional groups contains a $C=O$ group directly bonded to a $N$ atom?

• A. Amide
• B. Alcohol
• C. Alkene
• D. Ether

Answer: (A)

Verified step by step guidance

1. Identify the functional groups listed: Amide, Alcohol, Alkene, and Ether.
2. Recall that a carbonyl group is represented as \(\mathrm{C}=\mathrm{O}\), which is a carbon double bonded to oxygen.
3. Understand that the question asks for a functional group where the carbonyl carbon is directly bonded to a nitrogen atom (\(\mathrm{N}\)).
4. Review the structure of each functional group: Alcohols have an \(\mathrm{-OH}\) group, Alkenes have a carbon-carbon double bond (\(\mathrm{C}=\mathrm{C}\)), Ethers have an oxygen atom bonded between two carbons (\(\mathrm{C}-\mathrm{O}-\mathrm{C}\)), and Amides have a carbonyl group bonded directly to a nitrogen atom (\(\mathrm{C}=\mathrm{O}\) bonded to \(\mathrm{N}\)).
5. Conclude that the Amide functional group contains a \(\mathrm{C}=\mathrm{O}\) group directly bonded to a nitrogen atom, which matches the requirement of the problem.