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

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

Answer: (A)

Verified step by step guidance

1. Identify the functional groups listed: Amide, Ether, Alkene, and Alcohol.
2. Recall the structure of each functional group and look for the presence of a carbonyl group (\(C=O\)).
3. Understand that a carbonyl group (\(C=O\)) consists of a carbon atom double bonded to an oxygen atom.
4. Determine which functional group has the carbonyl carbon directly bonded to a nitrogen atom (\(N\)). This means the \(C=O\) is adjacent to an \(N\) atom in the structure.
5. Recognize that an amide functional group has the structure \(R-\mathrm{C}(=O)-N-R'\), where the carbonyl carbon is directly bonded to a nitrogen atom, distinguishing it from ethers, alkenes, and alcohols.