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
51–60 of 359 · Easy
Question 51
3 marks · Easy
Answer and see the solution →(a)[1 mark]Name the most reactive halogen out of chlorine, bromine, and iodine.
(b)[1 mark]Describe what happens when iodine solution is added to potassium bromide solution.
(c)[1 mark]Explain your answer to part (b).
Question 52
2 marks · Easy
Answer and see the solution →The following reaction occurs: 2KBr(aq) + Cl2(aq) -> 2KCl(aq) + Br2(aq) If 0.10 mol of chlorine reacts with excess potassium bromide, calculate the maximum amount in mol of bromine formed.
Question 53
1 mark · Easy
Answer and see the solution →Name the ion that is displaced when bromine water is added to sodium iodide solution.
Question 54
3 marks · Easy
Answer and see the solution →Fluorine can react with potassium chloride solution in a displacement reaction.
(a)[2 marks]State whether potassium chloride reacts with bromine water. Explain your answer.
(b)[1 mark]Explain why fluorine always acts as an oxidising agent in these types of reactions.
Question 55
2 marks · Easy
Answer and see the solution →Write the balanced ionic equation, including state symbols, for the displacement reaction when chlorine gas is bubbled through a solution of sodium fluoride.
Question 56
2 marks · Easy
Answer and see the solution →Explain, in terms of electron transfer, why bromine acts as an oxidising agent in its reaction with iodide ions.
Question 57
3 marks · Easy
Answer and see the solution →The table shows the results of adding halogen solutions to different potassium halide solutions.
Observations of displacement reactions Halogen solution Potassium chloride Potassium bromide Potassium iodide Chlorine water — orange solution brown solution Bromine water — — brown solution Iodine solution — — — (a)[2 marks]State two observations from the table that provide evidence for displacement reactions.
(b)[1 mark]Identify the halide ion displaced by chlorine water from the solutions tested.
Question 58
1 mark · Easy
Answer and see the solution →State which species is reduced in the reaction between chlorine and potassium bromide.
Question 59
3 marks · Easy
Answer and see the solution →Complete the ionic equation for the reaction between bromine water and sodium iodide solution. Include state symbols.
(a)[1 mark]Write the products formed in the reaction.
(b)[2 marks]Write a balanced ionic equation, including state symbols, for the reaction.
Question 60
2 marks · Easy
Answer and see the solution →Bromine water is added to a solution of sodium iodide. Explain, in terms of electron transfer, why bromine acts as an oxidising agent in this reaction.