Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Displacement reactions involving metal oxides
20 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →Copper(II) oxide reacts with a solid element X when heated, producing copper metal and a white solid. Element X cannot displace magnesium from magnesium oxide.
Question 2
5 marks · Hard
Answer and see the solution →A student heats powdered samples of four different metals (A, B, C, D) separately with iron(III) oxide. The results are shown:
Observations of reactions with iron(III) oxide Metal Observation with iron(III) oxide A A bright reaction. Grey metal formed. B No visible change. C Slow reaction with faint glow. Grey metal appeared. D No reaction even after strong heating. (a)[2 marks]Arrange the four metals (A, B, C, D) in order of their reactivity, from most reactive to least reactive, based on the observations above.
(b)[3 marks]Suggest what happens chemically when metal A reacts with iron(III) oxide. State which metal is reduced and which is oxidised.
Question 3
2 marks · Hard
Answer and see the solution →State what is meant by the term 'reducing agent' in a redox reaction, and give an example from a reaction involving metal oxides.