Gomberg's reaction

Explanation

### Step-by-Step Solution for Gomberg's Reaction

**Step 1: Identify the Reactants**
- The primary reactant in Gomberg's reaction is the benzene diazonium salt, represented as Ar-N₂⁺Cl⁻, where Ar is a phenyl group (benzene ring).
- The second reactant is benzene (C₆H₆).
- The reaction is conducted in a basic medium, typically using sodium hydroxide (NaOH).

**Step 2: Formation of the Intermediate**
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