__________ is an ore of aluminium.

Options

A. Haematite
B. Bauxite
C. Chalcocite
D. Magnetite

Answer

To answer the question "__________ is an ore of aluminium," we need to identify the specific ore from which aluminium can be extracted. Here is the step-by-step solution:

### Step-by-Step Solution

1. **Understanding the Concept of Ore**:
- An ore is a naturally occurring solid material from which a metal can be extracted profitably.

2. **Identifying Aluminium Ore**:
- The question specifically asks for an ore of aluminium. We need to recall which mineral is known as the primary source of aluminium.

3. **Recognizing the Correct Ore**:
- The most commonly known ore of aluminium is **bauxite**.

4. **Chemical Composition of Bauxite**:
- Bauxite is primarily composed of aluminium oxide, and its chemical formula is **Al2O3·2H2O**.

5. **Conclusion**:
- Therefore, the answer to the question is: **Bauxite** is an ore of aluminium.

### Final Answer
**Bauxite** is an ore of aluminium.

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