Aluminium metal is extracted only by:
A) Electrolysis
B) Calcination
C) Reduction
D) Oxidation

Options

A. Electrolysis
B. Calcination
C. Reduction
D. Oxidation

Answer

To solve the question regarding the extraction method of Aluminium metal, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which method is used to extract Aluminium metal from its ore.

2. **Identify the Options**: The options provided are:
- A) Electrolysis
- B) Calcination
- C) Reduction
- D) Oxidation

3. **Review Extraction Methods**:
- **Electrolysis**: This method is commonly used for extracting high reactive metals from their ores. Aluminium is a high reactive metal.
- **Calcination**: This process is used primarily for carbonate ores to remove carbon dioxide.
- **Reduction**: This method is generally used for extracting metals from their oxides.
- **Oxidation**: This process involves the loss of electrons, which is not typically used for metal extraction.

4. **Determine the Correct Method for Aluminium**:
- Aluminium is extracted from its ore (bauxite) primarily through the process of electrolysis. This is because Aluminium is a highly reactive metal and requires a significant amount of energy to separate it from its ore.

5. **Conclude the Answer**: Based on the above analysis, the correct answer to the question is **A) Electrolysis**.