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The reactions of chlorine past paper questions

Chemistry 9701 · Group 17. 1 describe and interpret, in terms of changes in oxidation number, the reaction of chlorine with cold and with hot aqueous sodium hydroxide and recognise these as disproportionation reactions 2 explain, including by use of an equation, the use of chlorine in water purification to include the production of the active species HOCl and Cl O­– which kill bacteria

In Cambridge A Level Chemistry 9701, The reactions of chlorine came up in 54 of the 139 papers on Paperstreak, for about 1 marks a paper when it does. It last came up in October/November 2025.

Often set with Physical properties of the Group 17 elements, Oxidation and reduction, Halogens and hydrogen halides, Period 3 chlorides with water.

54 questions, newest first

  1. 9701/12/O/N/25 Question 21 · 1 mark
  2. 9701/11/M/J/25 Question 19 · 1 mark
  3. 9701/23/M/J/25 Question 6 parts (a(ii)) (a(iii)) · 2 marks
  4. 9701/22/F/M/25 Question 3 part (b) · 2 marks
  5. 9701/12/O/N/24 Question 23 · 1 mark
  6. 9701/21/O/N/24 Question 2 part (c(i)) · 1 mark
  7. 9701/23/O/N/24 Question 2 part (c(i)) · 1 mark
  8. 9701/12/M/J/24 Question 19 · 1 mark
  9. 9701/22/F/M/24 Question 2 parts (b(ii)) (b(iii)) · 2 marks
  10. 9701/21/M/J/23 Question 3 part (c(i)) · 1 mark
  11. 9701/22/M/J/23 Question 2 parts (d(i)) (d(ii)) (e(i)) · 3 marks
  12. 9701/11/O/N/22 Question 22 · 1 mark
  13. 9701/12/O/N/22 Question 21 · 1 mark
  14. 9701/13/O/N/22 Question 22 · 1 mark
  15. 9701/21/O/N/22 Question 3 part (b) · 1 mark
  16. 9701/23/O/N/22 Question 3 part (b) · 1 mark
  17. 9701/12/M/J/22 Question 23 · 1 mark
  18. 9701/11/O/N/21 Question 17 · 1 mark
  19. 9701/13/O/N/21 Question 17 · 1 mark
  20. 9701/12/M/J/21 Question 17 · 1 mark
  21. 9701/13/M/J/21 Question 35 · 1 mark
  22. 9701/23/M/J/21 Question 1 part (c) · 1 mark
  23. 9701/12/F/M/21 Question 16 · 1 mark
  24. 9701/22/F/M/21 Question 2 parts (a) (d(ii)) · 2 marks
  25. 9701/21/O/N/20 Question 4 part (a(iv)) · 1 mark
  26. 9701/23/O/N/20 Question 4 part (a(iv)) · 1 mark
  27. 9701/11/M/J/20 Question 36 · 1 mark
  28. 9701/12/F/M/20 Question 14 · 1 mark
  29. 9701/11/O/N/19 Question 35 · 1 mark
  30. 9701/13/O/N/19 Question 35 · 1 mark
  31. 9701/21/O/N/19 Question 1 parts (a(ii)) (c(i)) (c(ii)) (d) · 6 marks
  32. 9701/23/O/N/19 Question 1 parts (a(ii)) (c(i)) (c(ii)) (d) · 6 marks
  33. 9701/11/M/J/19 Question 17 · 1 mark
  34. 9701/12/M/J/19 Question 17 · 1 mark
  35. 9701/13/M/J/19 Question 35 · 1 mark
  36. 9701/22/M/J/19 Question 3 part (b(iii)) · 1 mark
  37. 9701/22/F/M/19 Question 2 part (c(ii)) · 1 mark
  38. 9701/11/O/N/18 Question 17 · 1 mark
  39. 9701/12/O/N/18 Question 17 · 1 mark
  40. 9701/13/O/N/18 Question 17 · 1 mark
  41. 9701/11/M/J/18 Question 14 · 1 mark
  42. 9701/12/M/J/18 Question 35 · 1 mark
  43. 9701/23/M/J/18 Question 3 parts (e(ii)) (e(iii)) · 3 marks
  44. 9701/12/F/M/18 Question 35 · 1 mark
  45. 9701/11/O/N/17 Question 17 · 1 mark
  46. 9701/12/O/N/17 Question 16 · 1 mark
  47. 9701/13/O/N/17 Question 17 · 1 mark
  48. 9701/11/M/J/17 Question 18 · 1 mark
  49. 9701/12/M/J/17 Question 16 · 1 mark
  50. 9701/13/M/J/17 Question 16 · 1 mark
  51. 9701/12/F/M/17 Question 17 · 1 mark
  52. 9701/12/O/N/16 Question 15 · 1 mark
  53. 9701/12/M/J/16 Question 18 · 1 mark
  54. 9701/12/F/M/16 Question 14 · 1 mark

More in Group 17: Physical properties of the Group 17 elements, Halogens and hydrogen halides, Some reactions of the halide ions.

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