The Hall process involves the reduction of Al₂O₃ to aluminum by

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Quizplus · Accepted Answer

The Hall process is an electrolytic reduction process that uses a molten mixture of cryolite (Na3AlF6) and aluminum oxide (Al2O3) as electrolyte. The aluminum oxide dissolves in the molten cryolite and the resulting solution has a lower melting point than pure Al2O3. The reduction of Al3+ ions at the cathode results in the deposition of aluminum metal, while the oxygen ions produced at the anode react with the carbon electrodes to form CO and CO2. Therefore, electrolysis is the best choice for the Hall process.

The Hall Process Involves the Reduction of Al2O3 to Aluminum

The Hall Process Involves the Reduction of Al₂O₃ to Aluminum