How will you convert aniline into nitrobenzene without the intermediacy of benzene?

Explanation

To convert aniline into nitrobenzene without the intermediacy of benzene, we can follow these steps:

### Step 1: Formation of Anilinium Ion
Aniline (C6H5NH2) is a weak base and can be protonated to form anilinium ion (C6H5NH3+). This can be done by treating aniline with hydrochloric acid (HCl).

**Reaction:**
\[ \text{C}_6\text{H}_5\text{NH}_2 + \text{HCl} \rightarrow \text{C}_6\text{H}_5\text{NH}_3^+ \text{Cl}^- \]

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