Correct the following statements by changing the underlined part of the sentence :
Aluminium metal is purified by `ul("Baeyer's process")`

Explanation

To correct the statement "Aluminium metal is purified by Baeyer's process," we need to replace "Baeyer's process" with the correct process used for the purification of aluminium.

### Step-by-Step Solution:

1. **Identify the Incorrect Part**: The statement mentions "Baeyer's process" as the method for purifying aluminium. This is incorrect.

2. **Research the Correct Process**: The correct process for the purification of aluminium is called "Hoope's process" (or "Hall-Héroult process").

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