Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Reactivity Series
163 practice questions
Topics covered
- Displacement reactions involving metal oxides20 practice questions
- Oxidation and reduction19 practice questions
- Displacement reactions involving solutions of salts19 practice questions
- Reactions of metals with water18 practice questions
- Reactions of metals with dilute acids19 practice questions
- Making predictions using the reactivity series19 practice questions
- Preventing rusting by galvanising21 practice questions
- Preventing rusting by using sacrificial protection18 practice questions
Practice questions
1–10 of 26 · 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.
Question 4
2 marks · Hard
Answer and see the solution →In the reaction below, identify the oxidising agent and the reducing agent: State each answer as a chemical formula.
Question 5
5 marks · Hard
Answer and see the solution →The following ionic equation represents a reaction between zinc metal and copper(II) ions:
(a)[2 marks]State which species is oxidised and which is reduced. Give your answers as chemical symbols or formulae.
(b)[1 mark]Write a half-equation for the oxidation process.
(c)[2 marks]Explain, in terms of electron transfer, why zinc is considered a reducing agent in this reaction.
Question 6
2 marks · Hard
Answer and see the solution →Describe what is meant by 'oxidation' and 'reduction', in terms of oxygen transfer.
Question 7
2 marks · Hard
Answer and see the solution →When iron metal is placed in a solution of copper(II) sulfate, a reaction occurs in which copper metal forms. Write the balanced ionic equation for this displacement reaction.
Question 8
5 marks · Hard
Answer and see the solution →A piece of magnesium is placed in a solution of nickel(II) chloride. Magnesium displaces nickel from the solution.
(a)[1 mark]Identify the spectator ion present in this reaction.
(b)[2 marks]Explain what is meant by a spectator ion in a displacement reaction.
(c)[1 mark]State, in terms of electron transfer, which ion acts as the oxidising agent in this reaction.
(d)[1 mark]State, with a reason, which atom or ion acts as the reducing agent.
Question 9
2 marks · Hard
Answer and see the solution →When zinc metal reacts with iron(II) sulfate solution, write the ionic half-equation for the reduction step in this displacement reaction.
Question 10
5 marks · Hard
Answer and see the solution →The table shows a list of four metals. Each can be added to a beaker of cold water. For each metal, describe what you would observe, and name the gas produced.
(a)[2 marks]Potassium is added to cold water.
(b)[1 mark]Sodium is added to cold water.
(c)[1 mark]Calcium granules are added to cold water.
(d)[1 mark]Lithium is added to cold water.