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
51–60 of 163
Question 51
3 marks · Normal
Answer and see the solution →In the reaction below, explain which substance is the oxidising agent and which is the reducing agent. Give your reasoning in terms of electron transfer.
Question 52
4 marks · Normal
Answer and see the solution →The table below shows observations from adding different metals to solutions of salts.
Observations of displacement reactions Metal added Solution Observation Zinc Copper(II) sulfate Brown solid forms; blue solution fades Copper Silver nitrate Grey crystals form; colourless solution turns blue Iron Magnesium sulfate No visible change For each reaction in the table, write the full ionic equation showing the species that change during the reaction. Where no reaction occurs, state why.
Question 53
1 mark · Normal
Answer and check →Which of the following is a spectator ion in the reaction between zinc and copper(II) chloride solution?
- A.Zn^{2+}
- B.Cl^-
- C.Cu^{2+}
- D.Zn(s)
Question 54
2 marks · Normal
Answer and see the solution →Write the ionic half-equation for the reduction that takes place when lead metal is formed from lead(II) ions.
Question 55
4 marks · Normal
Answer and see the solution →When manganese metal is placed in a solution of iron(II) sulfate, a displacement reaction occurs.
(a)[1 mark]State the oxidising agent in this reaction.
(b)[1 mark]State the reducing agent in this reaction.
(c)[2 marks]Explain why manganese is the reducing agent in terms of electron transfer.
Question 56
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 57
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 58
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 59
1 mark · Easy
Answer and see the solution →State the general word equation for the reaction of a metal with cold water.
Question 60
3 marks · Easy
Answer and see the solution →Potassium reacts vigorously when added to a trough of cold water.
(a)[2 marks]Describe two observations you would make during this reaction.
(b)[1 mark]Name the gas produced in this reaction.