Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Inorganic Chemistry
869 practice questions
Topics covered
- The Alkali Metals85 practice questions
- The Halogens86 practice questions
- Gases in the Atmosphere86 practice questions
- Reactivity Series163 practice questions
- Extraction and Uses of Metals128 practice questions
- Acids, Alkalis and Titrations83 practice questions
- Acids, Bases and Salt Preparations156 practice questions
- Chemical Tests68 practice questions
Practice questions
121–130 of 359 · Easy
Question 121
1 mark · Easy
Answer and see the solution →In a reaction, chlorine gas (Cl_2) acts as an oxidising agent. What does it do in terms of oxygen transfer?
Question 122
3 marks · Easy
Answer and see the solution →The following equation shows a redox reaction: Describe, in terms of electrons, what happens to:
(a)[1 mark]the zinc atoms
(b)[1 mark]the copper ions
(c)[1 mark]State which is oxidised and which is reduced.
Question 123
2 marks · Easy
Answer and see the solution →A student heats 5.0 g of lead in a stream of oxygen and forms 5.4 g of lead(II) oxide, according to the equation:
Calculate the mass of oxygen that has combined with the lead. State, in terms of oxygen transfer, what has happened to the lead.
Question 124
1 mark · Easy
Answer and see the solution →State the ionic equation for the reaction of magnesium with copper(II) sulfate solution.
Question 125
3 marks · Easy
Answer and see the solution →Nickel metal is added to a solution of iron(II) nitrate.
(a)[1 mark]State the formula of a spectator ion in this reaction.
(b)[2 marks]Explain what is meant by a spectator ion in a displacement reaction.
Question 126
2 marks · Easy
Answer and see the solution →Write the ionic half-equation for the oxidation step, showing iron metal reacting to form iron(II) ions in a displacement reaction.
Question 127
2 marks · Easy
Answer and see the solution →In the reaction:
State which substance acts as the oxidising agent and which acts as the reducing agent. Explain your answer in terms of electron transfer.
Question 128
3 marks · Easy
Answer and see the solution →The table shows the results of placing samples of metals in solutions of metal nitrates:
Results of Displacement Experiments Metal added Metal nitrate solution Observation Aluminium Silver nitrate Grey crystals form Copper Zinc nitrate No change Iron Copper(II) nitrate Reddish-brown deposit Magnesium Lead(II) nitrate Grey solid forms (a)[1 mark]Write the ionic equation for the reaction when aluminium is added to silver nitrate solution.
(b)[2 marks]Which metal does not react in its experiment? Explain why based on the data.
Question 129
1 mark · Easy
Answer and see the solution →Give the formula of the spectator ion present when potassium metal reacts with sodium chloride solution.
Question 130
3 marks · Easy
Answer and see the solution →Chromium is added to copper(II) sulfate solution. Chromium displaces copper from the solution.
(a)[2 marks]Write the ionic half-equation for the reduction step.
(b)[1 mark]Write the ionic half-equation for the oxidation step.