Select the incorrect statement for the metallurgy of aluminum:

Options

A. Bauxite can be enriched by Bayer's process
B. Al' is produced by electro lytic reduction of `Al_(2)O_(3)`
C. Refining of 'Al' is process by Hoope's electrolysis.
D. Electrolysis of 'Al' has mixture of `Al_(2)O_(3) + Na_(3)Alf_(6) + CaF_(2)` as electrolyte.

Explanation

To solve the question regarding the incorrect statement for the metallurgy of aluminum, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks us to identify the incorrect statement related to the metallurgy of aluminum.

2. **Evaluate Option A**:
- Statement: "Bauxite can be enriched by Bayer's process."
- Analysis: This statement is true. The Bayer process is indeed used to refine bauxite ore to obtain alumina (Al₂O₃).

3. **Evaluate Option B**:
- Statement: "Aluminum is produced by electrolytic reduction of Al₂O₃."
- Analysis: This statement is incorrect. While aluminum is produced through electrolytic reduction, it requires a mixture of Al₂O₃, Na₃AlF₆ (cryolite), and CaF₂. Therefore, stating that aluminum is produced solely from Al₂O₃ is misleading.

4. **Evaluate Option C**:
- Statement: "The refining of aluminum is processed by Hoops electrolysis."
- Analysis: This statement is true. The refining process of aluminum does involve electrolysis, specifically the Hall-Héroult process, which is often referred to in this context.

5. **Evaluate Option D**:
- Statement: "Electrolysis of aluminum as the mixture of Al₂O₃, Na₃AlF₆, and CaF₂ as electrolyte."
- Analysis: This statement is true. The electrolysis process indeed uses a mixture of these compounds as the electrolyte.

6. **Conclusion**: After evaluating all the options, we find that the incorrect statement is **Option B**.

### Final Answer:
The incorrect statement for the metallurgy of aluminum is **Option B**: "Aluminum is produced by electrolytic reduction of Al₂O₃."

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