Question

A medicine compound having an amide linkage was asked. Which of the following compounds contains an amide linkage?

• A. Acetanilide
• B. Aspirin
• C. Benzene
• D. Acetic acid

Hint:

An amide functional group consists of a carbonyl group (\( -\text{CO} \)) bonded to a nitrogen atom (\( \text{NH}_2 \)). Recognizing this structure can help identify compounds containing amides.

Answer 1

The Correct Option is A

An amide linkage is a functional group with the general formula \( -\text{CO}-\text{NH}_2 \). It consists of a carbonyl group (\( \text{C=O} \)) attached to a nitrogen atom (\( \text{NH}_2 \)).
Step 1: Identify compounds with an amide group - Acetanilide: Acetanilide contains the amide functional group. The structure consists of an aniline (amine group) attached to an acetyl group (\( \text{C=O}-\text{CH}_3 \)) forming the amide bond. - Aspirin: Aspirin contains an ester linkage, not an amide. It has a carboxyl group and an ester functional group. - Benzene: Benzene is a hydrocarbon and does not contain any functional group like an amide. - Acetic acid: Acetic acid contains a carboxyl group (\( -\text{COOH} \)), not an amide.
Step 2: Conclusion From the analysis above, we conclude that Acetanilide contains an amide linkage. Thus, the correct answer is \( \boxed{\text{Acetanilide}} \).