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O-LevelChemistryMetals & Reactivity5070/12 · Oct/Nov 2015 · Q191 Mark

Aluminium is manufactured from aluminium oxide by electrolysis. The compound cryolite is used in this process. Which statement about cryolite is correct?

AIt is the common name for aluminium oxide.
BIt is used to dissolve the aluminium oxide.
CIt is used to make the positive electrode.
DIt is used to make the negative electrode.

✓ Correct answer

B: It is used to dissolve the aluminium oxide.

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About this question

Topic
Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 2, question 19.

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