When `BeCl_(2)` is hydrolyzed, fumes evolve and fumes are intensified when glass rod moist with ammonia is placed near the mouth of test tube. Explain this process of hydrolysis.

Explanation

To explain the hydrolysis of beryllium chloride (BeCl₂) and the subsequent evolution of fumes when a moist glass rod with ammonia is introduced, we can break down the process into clear steps:

### Step-by-Step Solution:

1. **Understanding Hydrolysis of BeCl₂**:
- Beryllium chloride (BeCl₂) reacts with water (H₂O) during hydrolysis. The chemical reaction can be represented as:
\[
\text{BeCl}_2 + 2 \text{H}_2\text{O} \rightarrow \text{Be(OH)}_2 + 2 \text{HCl}
...