Aluminium dissolves in mineral acids and aqueous alkalies and thus shows amphoteric character. A piece of aluminium foil is treated with diluted hydrochloric acid or dilute sodium hydroxide solution in a test tube and on bringing a buring matchstick near the mouth of the test tube, a pop sound indicates the volution of hydrogen gas.
The same activity when performed with concentrated nitric acid, reaction doesn't proceed. Explain the reason.

Explanation

### Step-by-Step Solution:

1. **Understanding Amphoteric Character of Aluminium**:
- Aluminium is known to exhibit amphoteric behavior, meaning it can react with both acids and bases. This characteristic allows it to dissolve in both mineral acids (like hydrochloric acid) and aqueous alkalis (like sodium hydroxide).

2. **Reaction with Dilute Hydrochloric Acid**:
- When aluminium foil is treated with dilute hydrochloric acid (HCl), the following reaction occurs:
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