Chemistry · Oct / Nov 2021 · Paper 12 · Question 34
In the extraction of aluminium from aluminium oxide, the following three reactions take place. 1 Al³⁺ + 3e⁻ → Al 2 2O²⁻ → O₂ + 4e⁻ 3 C + O₂ → CO₂ Which reactions take place at the positive electrode?
- A1 only
- B2 only
- C1 and 3
- D2 and 3
As printed in the paper
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Correct answer: D. 2 and 3
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