Which one of the following compound gives aspirin on reacting with acetic anhydride in presence of `H_(2)SO_(4)`

Options

A.
B.
C.
D.

Explanation

To solve the question of which compound gives aspirin when reacting with acetic anhydride in the presence of sulfuric acid (H₂SO₄), we can follow these steps:

### Step 1: Understand the Reaction
Aspirin (acetylsalicylic acid) is synthesized from salicylic acid when it reacts with acetic anhydride. The reaction involves the acetylation of the hydroxyl group of salicylic acid.

### Step 2: Identify the Structure of Aspirin
The structure of aspirin is:
- A benzene ring
- A carboxylic acid group (–COOH)
- An acetyl group (–OCOCH₃)

### Step 3: Write the Reaction
The reaction can be represented as:
\[ \text{Salicylic Acid} + \text{Acetic Anhydride} \xrightarrow{\text{H}_2\text{SO}_4} \text{Aspirin} + \text{Acetic Acid} \]

### Step 4: Identify Salicylic Acid
Salicylic acid has the following structure:
- A benzene ring
- A hydroxyl group (–OH) attached to the benzene ring
- A carboxylic acid group (–COOH)

### Step 5: Analyze the Options
We need to analyze the given options to find which one is salicylic acid. The compound that has both a hydroxyl group and a carboxylic acid group attached to a benzene ring will be the correct answer.

### Step 6: Conclusion
After analyzing the options, the compound that matches the structure of salicylic acid will be the one that gives aspirin when reacted with acetic anhydride in the presence of H₂SO₄.

### Final Answer
The correct compound that gives aspirin upon reaction with acetic anhydride in the presence of H₂SO₄ is **salicylic acid**.

---