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Group VII Elements · CAPE Chemistry Unit 1

42 past-paper questions on Group VII Elements, part of Chemistry of the Elements, from every CAPE Chemistry Unit 1 paper on Quelpr.

Practise Group VII Elements
  1. 1(c)(i)3 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2List TWO chemicals and ONE piece of apparatus that the student may use to carry out the investigation.
  2. 1(c)(ii)1 mark· CAPE Chemistry Unit 1 · 2021 · Paper 2Describe ONE physical change that the student may observe while carrying out the investigation.
  3. 1(c)(iii)1 mark· CAPE Chemistry Unit 1 · 2021 · Paper 2Identify the oxidizing agent that the student may use while conducting the investigation.
  4. 1(c)(iv)2 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Write relevant half equations to illustrate the chemical changes that occur with EACH element used to carry out the investigation.
  5. 3(a)(i)3 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Explain how the boiling point of the halogens changes going down the group.
  6. 3(a)(ii)3 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Explain how the oxidizing power of the halogens changes going down the group.
  7. 3(b)(i)2 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Write a balanced equation for the reduction of H2SO4 to SO2 by Br^-.
  8. 3(b)(ii)2 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Write a balanced equation for the reduction of H2SO4 to H2S by I^-.
  9. 3(b)(iii)2 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Write a balanced equation for the reaction between H2SO4 and Cl^-.
  10. 3(c)5 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Complete the table to show how both AgNO3(aq) and NH3(aq) can be used to distinguish between solutions of NaCl(aq) and NaBr(aq), specifying the test and observations.
  11. 1(f)(ii)1 mark· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2State the result observed when concentrated ammonia solution is added to this yellow precipitate.
  12. 1(g)2 marks· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2Describe the result observed when chlorine water is added to a solution of potassium bromide, followed by aqueous silver nitrate.
  13. 3(h)(i)1 mark· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2Identify element Z.
  14. 3(h)(ii)4 marks· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2Explain the reaction taking place in EACH of the tests above. Include balanced equations in your explanation.
  15. 3(b)(i)4 marks· CAPE Chemistry Unit 1 · May/June 2026 · Paper 2Describe the reaction of chlorine with hydrogen and write a balanced chemical equation for the reaction.
  16. 3(b)(ii)4 marks· CAPE Chemistry Unit 1 · May/June 2026 · Paper 2Describe the reaction of bromine with hydrogen and write a balanced chemical equation for the reaction.
  17. 3(b)(iii)4 marks· CAPE Chemistry Unit 1 · May/June 2026 · Paper 2With reference to the bond energies of the hydrides given in Table 4, explain the relative thermal stabilities of the hydrogen halides.
  18. 1(c)4 marks· Chemistry · Unit 1 Q1 1(c)Describe an experiment, including observations, that can be used to compare the oxidizing ability of the elements chlorine, bromine and iodine.
  19. 3(a)(i)3 marks· Chemistry · Unit 1 Q3 3(a)(i)Describe the reaction of Fluorine with hydrogen.
  20. 3(a)(i)1 mark· Chemistry · Unit 1 Q3 3(a)(i)Define the term 'disproportionation'.
  21. 3(a)(ii)3 marks· Chemistry · Unit 1 Q3 3(a)(ii)Describe the reaction of Chlorine with hydrogen.
  22. 3(a)(ii)3 marks· Chemistry · Unit 1 Q3 3(a)(ii)Write the balanced equation for the reaction above and hence deduce the oxidation number of chlorine in KClO₃ and KClO₄ respectively.
  23. 3(a)(iii)3 marks· Chemistry · Unit 1 Q3 3(a)(iii)Describe the reaction of Bromine with hydrogen.
  24. 3(b)3 marks· Chemistry · Unit 1 Q3 3(b)Explain the trend in volatility of the halogens as the group is descended.
  25. 3(b)(i)2 marks· Chemistry · Unit 1 Q3 3(b)(i)Identify the gases observed in Test Tube II and Test Tube III.
  26. 3(b)(ii)2 marks· Chemistry · Unit 1 Q3 3(b)(ii)Write a balanced equation to represent the reaction occurring in Test Tube II.
  27. 3(b)(iii)2 marks· Chemistry · Unit 1 Q3 3(b)(iii)Using the relevant information provided in the data booklet, explain the trend in the observations recorded in Table 2.
  28. 3(b)(iv)1 mark· Chemistry · Unit 1 Q3 3(b)(iv)What would you observe if hydrogen fluoride was used in the experiment?
  29. 3(c)(i)1 mark· Chemistry · Unit 1 Q3 3(c)(i)State what would be observed in the case of sodium chloride.
  30. 3(c)(ii)2 marks· Chemistry · Unit 1 Q3 3(c)(ii)State what would be observed in the case of sodium bromide.
  31. 3(d)3 marks· Chemistry · Unit 1 Q3 3(d)Write an ionic equation to show the oxidizing nature of sulfuric acid in Test (c) (i).
  32. 6(c)(i)1 mark· Chemistry · Unit 1 Q6 6(c)(i)State the name of the halide ion in A.
  33. 6(c)(i)1 mark· Chemistry · Unit 1 Q6 6(c)(i)What is meant by the term 'disproportionation'?
  34. 6(c)(ii)2 marks· Chemistry · Unit 1 Q6 6(c)(ii)Write the formula equation for the reaction of A with chlorine.
  35. 6(c)(ii)2 marks· Chemistry · Unit 1 Q6 6(c)(ii)A suspension is formed when excess silver ions (Ag+) are added to Solution P. On filtering the suspension and heating the filtrate a white precipitate is formed. Given the fact that the filtrate contains both Ag+ and…
  36. 6(d)(i)3 marks· Chemistry · Unit 1 Q6 6(d)(i)Identify the substances, T, U and V.
  37. 6(d)(ii)1 mark· Chemistry · Unit 1 Q6 6(d)(ii)Write the formula for the ion present in S.
  38. 6(d)(iii)1 mark· Chemistry · Unit 1 Q6 6(d)(iii)Write the equation for the formation of the cream precipitate, V.
  39. 271 mark· Chemistry · Unit 1 Q27 27During a chemical reaction, disproportionation is said to occur if the substance
  40. 341 mark· Chemistry · Unit 1 Q34 34Which of these gases will undergo oxidation?
  41. 351 mark· Chemistry · Unit 1 Q35 35Based on its position in Group VII of the periodic table, astatine, at room temperature and pressure, is MOST likely a
  42. 411 mark· Chemistry · Unit 1 Q41 41When concentrated H₂SO₄ is added to solid potassium iodide, the observations are white steamy fumes and

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