Conversion of Aniline to p-hydroxyazobenzene

Explanation

To convert aniline to p-hydroxyazobenzene, we will follow these steps:

### Step 1: Diazotization of Aniline
1. **Starting Material**: Aniline (C6H5NH2).
2. **Reagents**: Sodium nitrite (NaNO2) and hydrochloric acid (HCl).
3. **Conditions**: The reaction should be carried out at a low temperature (0 to 5 degrees Celsius).
4. **Reaction**: Aniline reacts with NaNO2 and HCl to form diazonium salt (C6H5N2Cl).
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