Question:
The incorrect statement about the Hall-Héroult process is:
The incorrect statement about the Hall-Héroult process is:
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The Hall-Héroult process reduces alumina to aluminum without changing oxygen's oxidation state overall.
Updated On: Dec 26, 2024
- Carbon anode is oxidised to CO and CO2
- Na3AlF6 helps to decrease the melting point of the electrolyte
- CaF2 helps to increase the conductivity of the electrolyte
- Oxidation state of oxygen changes in the overall cell reaction
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The Correct Option is D
Solution and Explanation
In the Hall-Héroult process, the oxidation state of oxygen does not change in the overall cell reaction. The process involves the reduction of alumina to aluminium and oxidation of carbon to CO and CO2
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