In Hall - Heroult process, the following is used for reducing Al2O3 :-
Show Hint
The Hall-H´eroult process is a widely used method for extracting aluminum from its oxide. Graphite not only provides a surface for the reaction but also helps reduce \(Al_2O_3\)
- Na3AlF6
- Graphite
- Magnesium
- CaF2
The Correct Option is B
Solution and Explanation
In the Hall-H´eroult process, aluminum oxide \((Al_2O_3)\) is electrolyzed to produce aluminum. Graphite serves as the anode material, where oxygen gas is released, while the cathode is where aluminum is deposited. Graphite also acts as a reducing agent in the process by reacting with oxygen. Thus, the correct answer is option (2) .
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