O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2010 · Q211 Mark

The position of metal M in the reactivity series is shown. [Figure 21.1] Which method will be used to extract M from its ore?

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Aelectrolysis of its aqueous sulfate

Belectrolysis of its molten oxide

Creduction of its oxide by heating with coke

Dreduction of its oxide by heating with hydrogen

✓ Correct answer

B: electrolysis of its molten oxide

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2010 Paper 1 Variant 1, question 21.

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