Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid, whereas copper does not. Explain, why?

Explanation

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- When zinc (Zn) reacts with dilute hydrochloric acid (HCl), a chemical reaction occurs that produces zinc chloride (ZnCl₂) and hydrogen gas (H₂).
- The balanced chemical equation for this reaction is:
\[ \text{Zn} + 2\text{HCl} \rightarrow \text{ZnCl}_2 + \text{H}_2 \]
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