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For Using electrolysis to extract metals, which redox focus answer best supports this Unit 4.4 objective: Describe aluminium oxide as the aluminium compound used in extraction?.
- A.Aluminium oxide dissolved in cryolite - correct redox focus for aluminium oxide
- B.Wrong redox focus: confuses aluminium oxide with a nearby Unit 4.4 chemical change idea
- C.Wrong particle check: uses the wrong ion, electrode, acid-base term, or product for Using electrolysis to extract metals
- D.Wrong reaction link: does not support Describe aluminium oxide as the aluminium compound used in extraction
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