Answer the question based on the extraction of aluminium from alumina by Hall Heroult's Process :
Name the electrode, from which aluminium is collected.

Explanation

To solve the question regarding the extraction of aluminum from alumina by the Hall-Héroult process, we need to identify the electrode from which aluminum is collected. Here’s a step-by-step breakdown of the solution:

### Step-by-Step Solution:

1. **Understanding the Process**: The Hall-Héroult process is an electrolytic method used to extract aluminum from alumina (Al₂O₃). This process involves the electrolysis of a molten mixture of alumina and cryolite (Na₃AlF₆).

2. **Identifying the Electrodes**: In the Hall-Héroult process, two electrodes are used:
- **Anode**: This is the positive electrode where oxidation occurs.
...