Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Making predictions using the reactivity series
19 practice questions
Practice questions
1–8 of 8 · Easy
Question 1
1 mark · Easy
Answer and see the solution →Rubidium is placed above potassium in the reactivity series. Would you expect rubidium to react more or less vigorously with water compared to potassium? State your answer.
Question 2
3 marks · Easy
Answer and see the solution →Calcium, lead and iron are placed in the following order in the reactivity series: calcium > iron > lead.
(a)[1 mark]Which of these three metals would you expect to react most quickly with dilute hydrochloric acid?
(b)[1 mark]Predict which of these metals would not react at all with cold water.
(c)[1 mark]Explain your answer to part b.
Question 3
2 marks · Easy
Answer and see the solution →A lump of nickel is placed in copper(II) sulfate solution. Explain what happens, using the reactivity series.
Question 4
3 marks · Easy
Answer and see the solution →A student investigates the reaction of four metals (A, B, C, D) with dilute hydrochloric acid. The results are given in the table:
Observed reactions with dilute hydrochloric acid. Metal Observation A rapid fizzing B no reaction C slow bubbling D moderate fizzing (a)[1 mark]Arrange the metals in order of decreasing reactivity with dilute hydrochloric acid.
(b)[1 mark]Which metal is most likely copper? Explain your answer.
(c)[1 mark]Suggest a possible identity for the most reactive metal, A.
Question 5
2 marks · Easy
Answer and see the solution →Gallium is a metal that is placed between aluminium and zinc in the reactivity series. Copper is below both aluminium and zinc in the reactivity series.
Predict whether gallium will be able to displace copper from copper(II) sulfate solution. Use the reactivity series to explain your reasoning.
(a)[2 marks]Will gallium displace copper from copper(II) sulfate solution? Explain your answer using the reactivity series.
(b)[0 marks]Question 6
1 mark · Easy
Answer and see the solution →A piece of rubidium metal is added to cold water. Predict what will happen. Use the reactivity series in your answer.
Question 7
3 marks · Easy
Answer and see the solution →A new metal, Q, lies between magnesium and zinc in the reactivity series.
(a)[1 mark]Predict whether metal Q will react with cold water. State your reasoning.
(b)[2 marks]Predict whether metal Q will react with dilute hydrochloric acid at room temperature. State your reasoning.
Question 8
2 marks · Easy
Answer and see the solution →When 1.0 g of an unknown metal (X) is added to excess dilute sulfuric acid at room temperature, 0.067 g of hydrogen gas is released. Given that the metal is above hydrogen in the reactivity series, predict whether magnesium or iron is more likely to be metal X. Show your reasoning.