An aromatic compound (A) on treatment with aqueous ammonia and heating forms compound (B) which on heating with ` Br_2` and ` KOH` forms a compound (C ) of the molecular formula ` C_6 H_7 N`. Write the structures and `IUPAC` names of compounds (A) . (B) and (C ).

Explanation

To solve the problem step by step, we will identify the compounds (A), (B), and (C) based on the given reactions and molecular formula.

### Step 1: Identify Compound (A)
The problem states that an aromatic compound (A) reacts with aqueous ammonia to form compound (B). Given the context, a suitable aromatic compound that can react with ammonia is **benzoic acid**.

- **Structure of Compound (A)**:
- Benzoic acid:
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