O-LevelChemistryMetals & Reactivity5070/12 · May/June 2016 · Q291 Mark

The final reaction in the extraction of metal X is represented by the following equation. X2O3 + 3CO → 2X + 3CO2 What is X?

Aaluminium

Bcopper

Ciron

Dsodium

✓ Correct answer

C: iron

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2016 Paper 1 Variant 2, question 29.

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