Question

Identify the product ‘A’ in the following reaction:
\text{Aniline} + (CH\(_3\)CO)\(_2\)O \(\xrightarrow{\text{pyridine}}\) A

• A. Acetanilide
• B. Sulphanilic acid
• C. P-nitroacetanilide
• D. Benzenediazonium chloride

Hint:

Acetanilide is formed by acylation of aniline with acetic anhydride. Pyridine acts as a base to neutralize the acid formed during the reaction.

Answer 1

The Correct Option is A

Step 1: Understanding the reaction.
In the given reaction, acetic anhydride (Ac\(_2\)O) reacts with aniline in the presence of pyridine, a base, to form acetanilide. This is an example of an acylation reaction.

Step 2: Analyzing the options.
(A) Acetanilide: This is the correct product formed when aniline reacts with acetic anhydride.
(B) Sulphanilic acid: This is an aromatic amine derivative but not the product of this reaction.
(C) P-nitroacetanilide: This product requires a nitro group on the aniline ring, which is not introduced in this reaction.
(D) Benzenediazonium chloride: This compound is unrelated to the acylation reaction described here.

Step 3: Conclusion.
The correct answer is (A) Acetanilide.