Essential Chemistry for IGCSE - Electricity And Chemistry (Section 6 - No. 18)
Which of the following is/are a correct description of the electrolysis process for extracting aluminum?
The cathode is made from carbon.
Aluminium ions gain electrons.
Aluminum is formed at the anode.
The electrolyte is aluminum oxide and cryolite.
Explanation
Aluminium is formed at the cathode. The electrolyte consists of molten aluminium oxide dissolved in molten cryolite.
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