How p-niro toluene can be converted to benzene?

Explanation

To convert para-nitrotoluene to benzene, we can follow a series of chemical reactions. Here’s a step-by-step breakdown of the process:

### Step 1: Reduction of para-Nitrotoluene
- **Reaction**: Para-nitrotoluene (C6H4(NO2)(CH3)) is treated with Sn (tin) and HCl (hydrochloric acid).
- **Process**: The nitro group (-NO2) is reduced to an amino group (-NH2).
- **Result**: This gives us para-aminotoluene (C6H4(NH2)(CH3)).

### Step 2: Diazotization
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