Write reaction of justify amphoteric nature of aluminium.

Explanation

To justify the amphoteric nature of aluminum, we can demonstrate its ability to react with both acids and bases. Here are the reactions that illustrate this property:

### Step-by-Step Solution:

1. **Understanding Amphoteric Nature**:
- Amphoteric substances can react with both acids and bases. Aluminum (Al) is one such element.

2. **Reaction with Acid**:
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