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
71–80 of 163
Question 71
1 mark · Normal
Answer and check →Which observation is typical when lithium is added to cold water?
- A.A lilac flame appears above the water.
- B.The metal floats, fizzes, and moves slowly on the surface.
- C.The water becomes orange and the metal disappears with no gas.
- D.A yellow solid is immediately formed in the water.
Question 72
2 marks · Normal
Answer and see the solution →Name the solid products formed when:
(a)[1 mark]zinc reacts with steam,
(b)[1 mark]iron reacts with steam.
Question 73
4 marks · Normal
Answer and see the solution →Some metals do not react with water or steam.
(a)[2 marks]State whether aluminium reacts with steam and explain your answer with reference to its oxide layer.
(b)[2 marks]Explain why copper does not react with cold water or steam.
Question 74
3 marks · Normal
Answer and see the solution →When 7.2 grams of magnesium ribbon are heated in steam, magnesium oxide and hydrogen gas are produced. The equation for the reaction is:
Calculate the volume (in dm) of hydrogen gas produced at room temperature and pressure (RTP) from this reaction. (Molar mass of Mg = 24 g/mol; the molar volume of a gas at RTP = 24 dm/mol)
Question 75
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.
Question 76
2 marks · Hard
Answer and see the solution →Iron reacts with steam to form a black solid and hydrogen gas. State the name and chemical formula of the black solid formed.
Question 77
1 mark · Easy
Answer and see the solution →When magnesium reacts with dilute hydrochloric acid, what gas is produced?
Question 78
3 marks · Easy
Answer and see the solution →(a)[1 mark]A student adds a piece of zinc to dilute hydrochloric acid. State one observation she might make.
(b)[2 marks]What test could be used to confirm the identity of the gas produced? State the result.
Question 79
2 marks · Easy
Answer and see the solution →A student uses 0.35 g of magnesium in a reaction with excess dilute hydrochloric acid. (Relative atomic mass, Mg = 24)
Calculate the number of moles of magnesium used. Give your answer to two decimal places.
Question 80
2 marks · Easy
Answer and see the solution →Explain, with reasons, why copper does not react when added to dilute hydrochloric acid, but magnesium reacts vigorously.