Which of the following chemical reactions represents Hall-Heroult Process?

Options

A. `Cr_2O_3 +2Al to Al_2O_3 +2Cr`
B. `2Al_2 O_3+3C to 4Al +3CO_2`
C. `FeO+CO to Fe+CO_2`
D. `2[Au(CN)_2]_((aq))^(-) +Zn(s) to 2Au(s) +[Zn(CN_4)]^(2-)`

Explanation

To determine which chemical reaction represents the Hall-Heroult Process, we need to understand the key reactions involved in this electrolytic process used for the extraction of aluminum from its ore, bauxite (Al₂O₃).

### Step-by-Step Solution:

1. **Understanding the Hall-Heroult Process**:
- The Hall-Heroult process is an electrolytic method for producing aluminum. It involves the electrolysis of aluminum oxide (Al₂O₃) dissolved in molten cryolite (Na₃AlF₆).

2. **Identifying the Reactions**:
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