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Rate of reaction past paper questions

O Level Chemistry 5070 · Chemical reactions. 1 Describe collision theory in terms of: (a) number of particles per unit volume (b) frequency of collisions between particles (c) kinetic energy of particles (d) activation energy, Ea 2 State that a catalyst increases the rate of a reaction, decreases the activation energy, Ea, of a reaction and is unchanged at the end of a reaction 3 Describe and explain the effect on the rate of reactions of: (a) changing the concentration of solutions (b) changing the pressure of gases (c) changing the surface area of solids (d) changing the temperature (e) adding or removing a catalyst, including enzymes using collision theory 4 Describe and evaluate practical methods for investigating the rate of a reaction, including change in mass of a reactant or a product and the formation of a gas 5 Interpret data, including graphs, from rate of reaction experiments

In Cambridge O Level Chemistry 5070, Rate of reaction came up in 61 of the 72 papers on Paperstreak, for about 4 marks a paper when it does. It last came up in October/November 2025.

Often set with The mole and the Avogadro constant, Formulae, Experimental design, Redox.

86 questions, newest first

  1. 5070/11/O/N/25 Question 15 · 1 mark
  2. 5070/12/O/N/25 Question 15 · 1 mark
  3. 5070/12/O/N/25 Question 16 · 1 mark
  4. 5070/21/O/N/25 Question 7 part (b(i)) · 2 marks
  5. 5070/22/O/N/25 Question 6 parts (e(i)) (e(ii)) · 3 marks
  6. 5070/42/O/N/25 Question 1 parts (c) (d) · 3 marks
  7. 5070/11/M/J/25 Question 17 · 1 mark
  8. 5070/12/M/J/25 Question 17 · 1 mark
  9. 5070/12/M/J/25 Question 18 · 1 mark
  10. 5070/21/M/J/25 Question 5 parts (c(ii)) (c(iii)) (c(iv)) · 5 marks
  11. 5070/22/M/J/25 Question 5 parts (b(iii)) (b(iv)) · 4 marks
  12. 5070/41/M/J/25 Question 2 part (g(i)) · 1 mark
  13. 5070/11/O/N/24 Question 14 · 1 mark
  14. 5070/11/O/N/24 Question 15 · 1 mark
  15. 5070/12/O/N/24 Question 17 · 1 mark
  16. 5070/21/O/N/24 Question 5 parts (b(i)) (b(ii)) · 4 marks
  17. 5070/22/O/N/24 Question 5 parts (b(i)) (b(ii)) (b(iii)) · 5 marks
  18. 5070/11/M/J/24 Question 17 · 1 mark
  19. 5070/11/M/J/24 Question 18 · 1 mark
  20. 5070/12/M/J/24 Question 17 · 1 mark
  21. 5070/21/M/J/24 Question 3 parts (b) (c) · 4 marks
  22. 5070/22/M/J/24 Question 3 parts (b) (c) · 4 marks
  23. 5070/11/O/N/23 Question 17 · 1 mark
  24. 5070/12/O/N/23 Question 16 · 1 mark
  25. 5070/21/O/N/23 Question 2 part (f(i)) · 1 mark
  26. 5070/21/O/N/23 Question 3 parts (b(i)) (b(ii)) (c) · 5 marks
  27. 5070/22/O/N/23 Question 3 parts (b(i)) (b(ii)) (c) · 5 marks
  28. 5070/41/O/N/23 Question 1 part (c) · 2 marks
  29. 5070/11/M/J/23 Question 13 · 1 mark
  30. 5070/11/M/J/23 Question 14 · 1 mark
  31. 5070/12/M/J/23 Question 15 · 1 mark
  32. 5070/12/M/J/23 Question 16 · 1 mark
  33. 5070/21/M/J/23 Question 5 parts (b) (c) · 4 marks
  34. 5070/22/M/J/23 Question 5 parts (b) (c) · 4 marks
  35. 5070/11/O/N/22 Question 21 · 1 mark
  36. 5070/11/O/N/22 Question 22 · 1 mark
  37. 5070/12/O/N/22 Question 21 · 1 mark
  38. 5070/12/O/N/22 Question 22 · 1 mark
  39. 5070/12/O/N/22 Question 23 · 1 mark
  40. 5070/21/O/N/22 Question 2 part (b(ii)) · 1 mark
  41. 5070/21/O/N/22 Question 4 part (a(ii)) · 1 mark
  42. 5070/21/O/N/22 Question 9 part (a(ii)) · 2 marks
  43. 5070/22/O/N/22 Question 9 parts (a(ii)) (a(iii)) · 4 marks
  44. 5070/41/O/N/22 Question 3 parts (b(ii)) (b(iii)) (c) (d(i)) (d(ii)) (d(iii)) (d(iv)) · 8 marks
  45. 5070/42/O/N/22 Question 3 parts (c(ii)) (d) (e(i)) (e(ii)) (e(iii)) (e(iv)) · 7 marks
  46. 5070/11/M/J/22 Question 20 · 1 mark
  47. 5070/11/M/J/22 Question 21 · 1 mark
  48. 5070/12/M/J/22 Question 20 · 1 mark
  49. 5070/12/M/J/22 Question 21 · 1 mark
  50. 5070/21/M/J/22 Question 6 parts (b(iii)) (b(iv)) (b(v)) · 5 marks
  51. 5070/22/M/J/22 Question 7 parts (c(i)) (c(ii)) (d(iii)) · 5 marks
  52. 5070/41/M/J/22 Question 1 parts (d(i)) (d(ii)) (d(iii)) (d(iv)) · 8 marks
  53. 5070/11/O/N/21 Question 2 · 1 mark
  54. 5070/11/O/N/21 Question 18 · 1 mark
  55. 5070/12/O/N/21 Question 2 · 1 mark
  56. 5070/12/O/N/21 Question 18 · 1 mark
  57. 5070/12/O/N/21 Question 19 · 1 mark
  58. 5070/21/O/N/21 Question 3 parts (a(i)) (a(ii)) (b(i)) (b(ii)) · 7 marks
  59. 5070/22/O/N/21 Question 3 parts (a) (b(i)) (b(ii)) · 6 marks
  60. 5070/41/O/N/21 Question 2 parts (b) (c(i)) (c(ii)) (c(iii)) (c(iv)) (d) · 7 marks
  61. 5070/42/O/N/21 Question 2 parts (b(i)) (b(ii)) (b(iii)) (b(iv)) (c) (d) · 7 marks
  62. 5070/11/M/J/21 Question 18 · 1 mark
  63. 5070/11/M/J/21 Question 19 · 1 mark
  64. 5070/12/M/J/21 Question 18 · 1 mark
  65. 5070/12/M/J/21 Question 19 · 1 mark
  66. 5070/21/M/J/21 Question 7 part (b) · 3 marks
  67. 5070/21/M/J/21 Question 9 part (c(ii)) · 2 marks
  68. 5070/22/M/J/21 Question 6 part (c(iii)) · 2 marks
  69. 5070/22/M/J/21 Question 7 part (c) · 3 marks
  70. 5070/41/M/J/21 Question 4 · 9 marks
  71. 5070/42/M/J/21 Question 5 parts (b) (c(i)) (c(ii)) (c(iv)) (c(v)) · 11 marks
  72. 5070/11/O/N/20 Question 2 · 1 mark
  73. 5070/12/O/N/20 Question 2 · 1 mark
  74. 5070/21/O/N/20 Question 5 part (b(i)) · 1 mark
  75. 5070/21/O/N/20 Question 6 part (d(ii)) · 2 marks
  76. 5070/22/O/N/20 Question 3 part (b(iii)) · 1 mark
  77. 5070/22/O/N/20 Question 6 part (b(ii)) · 2 marks
  78. 5070/41/O/N/20 Question 2 parts (b(i)) (b(ii)) (c) (d) · 7 marks
  79. 5070/42/O/N/20 Question 2 part (d(ii)) · 2 marks
  80. 5070/11/M/J/20 Question 17 · 1 mark
  81. 5070/12/M/J/20 Question 18 · 1 mark
  82. 5070/21/M/J/20 Question 3 part (d) · 2 marks
  83. 5070/21/M/J/20 Question 4 part (e(ii)) · 3 marks
  84. 5070/22/M/J/20 Question 3 part (d(ii)) · 3 marks
  85. 5070/42/M/J/20 Question 4 part (a) · 1 mark
  86. 5070/42/M/J/20 Question 5 part (b(iii)) · 1 mark

More in Chemical reactions: Physical and chemical changes, Reversible reactions and equilibrium, Redox.

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