`BeCl_2` gives an acidic solution when dissolved in water. Why?

Explanation

To understand why BeCl₂ gives an acidic solution when dissolved in water, we can break down the explanation into several steps:

### Step 1: Understanding BeCl₂
BeCl₂, or beryllium chloride, is an ionic compound consisting of beryllium (Be) cations and chloride (Cl) anions. When it dissolves in water, it dissociates into its constituent ions.

### Step 2: Dissociation in Water
When BeCl₂ is added to water, it dissociates as follows:
\[ \text{BeCl}_2 (s) \rightarrow \text{Be}^{2+} (aq) + 2 \text{Cl}^- (aq) \]
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