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O-LevelChemistryElectrolysis5070/11 · May/June 2016 · Q301 Mark

Which gases are all present at the positive electrode during the manufacture of aluminium?

ACO, H₂, CO₂
BCO, SO₂, H₂O
CCO₂, CO, CO₂
DSO₂, H₂, O₂

✓ Correct answer

C: CO₂, CO, CO₂

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About this question

Topic
Electrolysis, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, May/June 2016 Paper 1 Variant 1, question 30.

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