Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Extraction and Uses of Metals
128 practice questions
Topics covered
- Extracting metals from their ores19 practice questions
- Metals below carbon in the reactivity series19 practice questions
- Metals above carbon in the reactivity series18 practice questions
- Properties and uses of some metals19 practice questions
- Uses of aluminium19 practice questions
- Properties and uses of different kinds of steel20 practice questions
Practice questions
21–21 of 21 · Hard
Question 21
7 marks · Hard
Answer and see the solution →The metal iron is widely used in construction and manufacturing. Iron is typically extracted from its ore, haematite, which contains iron(III) oxide.
(a)[1 mark]State what is meant by the term "ore".
(b)[2 marks]Iron is found below carbon in the reactivity series.
Explain why carbon can be used to extract iron from its oxide, but cannot be used to extract aluminium from aluminium oxide.
(c)[2 marks]Write a balanced chemical equation for the reduction of iron(III) oxide with carbon monoxide.
(d)[2 marks]Suggest one economic reason why extraction by heating with carbon is preferred for some metals rather than extraction by electrolysis.