Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Displacement reactions involving metal oxides
20 practice questions
Practice questions
1–8 of 8 · Easy
Question 1
1 mark · Easy
Answer and see the solution →State what is meant by the term "oxidising agent".
Question 2
3 marks · Easy
Answer and see the solution →(a)[1 mark]State what is meant by a displacement reaction between metals and metal oxides.
(b)[2 marks]Magnesium reacts with zinc oxide when heated. Name the metal that is displaced, and explain why this happens.
Question 3
2 marks · Easy
Answer and see the solution →Based on the list below, which metal is most likely to displace others from their oxides? Assign rank 1 to the most reactive, and rank the rest in descending order.
Metal Calcium Copper Aluminium Iron Question 4
2 marks · Easy
Answer and see the solution →In a reaction, magnesium metal is heated with iron(III) oxide. Explain, in terms of oxidation and reduction, what happens to the magnesium and to the iron.
Question 5
3 marks · Easy
Answer and see the solution →A student mixes three different metals (M, N, P) with the oxides of each other and heats them. The table shows their observations:
Results of reactions between metals and metal oxides Added metal Metal oxide Reaction observed? (Yes/No) M N oxide Yes M P oxide No N M oxide No N P oxide No P M oxide Yes P N oxide Yes (a)[1 mark]Which metal is the most reactive?
(b)[1 mark]Arrange the metals in order of decreasing reactivity.
(c)[1 mark]Explain your reasoning for this order using the table.
Question 6
1 mark · Easy
Answer and see the solution →Which metal in the following list is the least reactive: aluminium, copper, magnesium, iron?
Question 7
3 marks · Easy
Answer and see the solution →(a)[1 mark]State the meaning of "reduction" in terms of oxygen.
(b)[1 mark]What is a reducing agent?
(c)[1 mark]In the reaction: , identify the oxidising agent.
Question 8
2 marks · Easy
Answer and see the solution →When 0.24 g of magnesium powder is heated with excess copper(II) oxide, a displacement reaction occurs:
Calculate the maximum mass of copper that can be produced. (Ar: Mg = 24, Cu = 64)