What happens when benzene diazonium chloride solution is added slowly to boiling dil, mineral acid?

Explanation

**Step-by-Step Solution:**

1. **Understanding Benzene Diazonium Chloride**: Benzene diazonium chloride is a compound with the formula C6H5N2Cl. It contains a diazonium group (N2+) attached to a benzene ring. The structure can be represented as C6H5-N2^+ Cl^−.

2. **Reaction Conditions**: The question specifies that the benzene diazonium chloride solution is added slowly to boiling dilute mineral acid. Here, the mineral acid is typically hydrochloric acid (HCl) or sulfuric acid (H2SO4) in a dilute form.

3. **Chemical Reaction**: When benzene diazonium chloride is added to boiling dilute mineral acid, the diazonium group (N2+) is unstable under these conditions. The reaction involves hydrolysis of the diazonium ion in the presence of water (from the dilute acid).

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