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Haloalkanes

Past-paper questions pack

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Questions are numbered; the mark schemes (the answer key) follow on separate pages so the question pages can be handed out alone. www.chemistryaleveltutor.com

OCR AS and A-level Chemistry past-paper questions since 2016 · 56 parts · mark schemes follow the questions · www.chemistryaleveltutor.com · Questions and mark schemes © OCR

1. June 2025 · AS Paper 1 · Q16 · 1 marks ·
16 Which equation is a propagation step in the catalytic breakdown of ozone? A C2F2Cl 2 C2F2Cl • + Cl • B O3 + O 2O2 C Cl • + Cl • Cl 2 D Cl O• + O Cl • + O2 Your answer [1]
2. June 2025 · AS Paper 1 · Q18 · 1 marks ·
18 The hydrolysis of 1-iodopropane by aqueous potassium hydroxide takes place at a faster rate than 1-bromopropane. Which statement explains the different rates of reaction? A Iodine is less reactive than bromine. B The C–I bond enthalpy is less than the C–Br bond enthalpy. C The C–I bond is less polar than a C–Br bond. D The C–I bond length is shorter than the C–Br bond length. Your answer [1]
3. June 2025 · AS Paper 2 · Q5(d)(i) · 3 marks ·
(d) Haloalkanes are important intermediates in organic synthesis. A student plans a two-stage synthesis to prepare compound Z from a hydrocarbon alkene X. (i) Draw the structure of the hydrocarbon alkene X in the box and write down the reagents for each stage on the dotted lines. Alkene X Stage 1 .................................. Br Br H CH3 H H C C C C C H H H H H H Compound Y Stage 2 .................................. OH OH H CH3 H H C C C C C H H H H H H Compound Z [3]
4. June 2025 · AS Paper 2 · Q5(d)(ii) · 1 marks ·
(ii) State the name of the mechanism of the reaction in Stage 2. ..................................................................................................................................................... [1]
5. June 2025 · Paper 2 · Q12 · 1 marks ·
12 Which process does not involve infrared radiation? A Catalytic ozone depletion B Monitoring toxic gases in the air C Measuring ethanol in breathalyser tests D Global warming Your answer [1]
6. June 2025 · Paper 2 · Q17 · 6 marks ·
17* This question is about an organic synthesis. A student plans a two-stage synthesis of compound F from compound D, as shown below. Cl OH OH O Stage 1 Stage 2 Compound E Compound D Compound F Plan a two-stage synthesis for the preparation of 2.50 g of compound F from compound D. The overall percentage yield of compound F from compound D is 31.5%. In your answer include the mass of compound D required, reagents and equations for each step. 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7. June 2025 · Paper 2 · Q19(a)(i) · 3 marks ·
19 This question is about reactions of haloalkanes. (a) Haloalkanes can react with potassium cyanide to form new carbon–carbon bonds. (i) Outline the mechanism for the reaction of 2-bromopropane with cyanide ions. Show curly arrows, relevant dipoles and products. Br [3]
8. June 2025 · Paper 2 · Q19(a)(ii) · 1 marks ·
(ii) Name this type of mechanism. ..................................................................................................................................................... [1]
9. June 2025 · Paper 3 · Q5(a)(iii) · 1 marks ·
(iii) In the preparation, LiAl H4 behaves as a nucleophile. What is meant by the term nucleophile? .......................................................................................................................................................... ..................................................................................................................................................... [1]
10. June 2024 · AS Paper 1 · Q19 · 1 marks ·
19 Which statement about infrared radiation (IR) is not correct? A Absorption of IR by molecules such as CO2, H2O and CH4 has been linked to global warming. B IR causes CFC molecules to produce chlorine radicals that initiate ozone breakdown in the upper atmosphere. C IR causes some covalent bonds to vibrate more and absorb energy. D IR is used in modern breathalysers to detect ethanol. Your answer [1]
11. June 2024 · AS Paper 1 · Q25(d)(i) · 2 marks ·
(d) Alcohols can be prepared by the hydrolysis of haloalkanes with aqueous alkali. (i) Write an equation for the hydrolysis of 2‑bromo‑2‑methylpropane. Show organic compounds as structures. [2]
12. June 2024 · AS Paper 1 · Q25(d)(ii) · 2 marks ·
(ii) A student hydrolyses a chloroalkane, RCl, a bromoalkane, RBr, and an iodoalkane, RI. For a fair comparison, the student has chosen the same R group for each haloalkane. Predict, with a reason, the relative rates of hydrolysis of these three haloalkanes. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... ..................................................................................................................................................... [2]
13. June 2024 · Paper 2 · Q3 · 1 marks ·
3 A student investigates the rate of hydrolysis of different iodoalkanes using aqueous silver nitrate in ethanol. What colour of precipitate is seen? A Brown B Cream C White D Yellow Your answer [1]
14. June 2024 · Paper 2 · Q8 · 1 marks ·
8 The CFC CCl 2F2 can cause the breakdown of ozone in the upper atmosphere. Which initiation step could occur with ultraviolet radiation to catalyse this breakdown? A CCl 2F2 ●C + ●Cl 2F2 B CCl 2F2 ●F + ●CCl 2F C CCl 2F2 ●Cl + ●CCl F2 D CCl 2F2 ●Cl 2 + ●CF2 Your answer [1]
15. June 2024 · Paper 2 · Q18(b) · 9 marks ·
(b) Complete the flowchart by filling in each box. amine reagent(s) ............................................. reagent(s) H ............................................. H3C C Br H bromoethane alcohol reagent(s) .......................................................... H H3C C C N H nitrile reagent(s) reagent(s) .......................................................... ............................................. carboxylic acid amine [9]
16. June 2024 · Paper 3 · Q5(a)(ii) · 1 marks ·
(ii) Write an equation for the alkaline hydrolysis of 1-bromopropane. Show structures of organic compounds. [1]
17. June 2024 · Paper 3 · Q5(a)(iii) · 3 marks ·
(iii) A student investigates the alkaline hydrolysis of 1-chloropropane using the same method as for 1-bromopropane. Predict, with reasons, how the appearance of the reaction mixture in the chromatogram produced after 20 minutes would be different when 1-chloropropane is used instead of 1-bromopropane. Suggest why propan-1-ol is run alongside the reaction mixture. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... ..................................................................................................................................................... [3]
18. June 2023 · AS Paper 1 · Q18 · 1 marks · AO2
18 A student has planned the two-stage synthesis shown below. H OH OH H3C C C Intermediate H3C C C H H3C H CH3 H Which compound could be the intermediate for this synthesis? H H A H3C C C H CH3 H Br H B H3C C C H CH3 H OH H C H3C C C H CH3 H Br Br D H3C C C H CH3 H Your answer [1]
19. June 2023 · AS Paper 2 · Q3(c) · 3 marks · AO1, 2
(c) A student is studying the hydrolysis of haloalkanes. The equation for the alkaline hydrolysis of 2-bromopropane, CH3CHBrCH3, is shown below. CH3CHBrCH3 + OH– CH3CHOHCH3 + Br – Use the curly arrow model to outline the mechanism for the alkaline hydrolysis of 2-bromopropane. Show relevant dipoles and lone pairs, and name the mechanism. name of mechanism .......................................................... [3]
20. June 2023 · AS Paper 2 · Q3(d)(i) · 2 marks · AO1
(d) The student sets up an experiment to compare the rates of hydrolysis of 2-bromopropane and 2-iodopropane. The student uses the method below. Step 1 Place two test tubes, both containing aqueous silver nitrate and ethanol, in a water bath at 60 °C. Step 2 Add five drops of 2-bromopropane to one test tube and five drops of 2-iodopropane to the other test tube. Step 3 Record the time taken for a precipitate to appear in each test tube. (i) Complete the table below to show the formula and colour of each precipitate formed. Haloalkane Formula of precipitate Colour of precipitate 2-bromopropane 2-iodopropane [2]
21. June 2023 · AS Paper 2 · Q3(d)(ii) · 1 marks · AO2
(ii) Predict which precipitate would form first and explain the difference in the rates of hydrolysis of 2-bromopropane and 2-iodopropane. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [1]
22. June 2023 · Paper 3 · Q2(c) · 4 marks · AO3
(c) The benzenediazonium ion, shown below, is stable at temperatures below 10 °C. + N N Benzenediazonium Above 10 °C, the benzenediazonium ion reacts with water to form phenol. The reaction proceeds in a three-step mechanism. Step 1 Elimination of nitrogen gas to form a carbocation. Step 2 Nucleophilic attack by water. Step 3 Proton loss to form the organic product. Complete the boxes below with intermediates and curly arrows to show the mechanism for this reaction. + Step 1 N N + ............ Step 2 Step 3 OH + H+ [4]
23. June 2022 · AS Paper 1 · Q18 · 1 marks · AO1
18 When heated with NaOH(aq), 1-chlorobutane is hydrolysed at a slower rate than 1-bromobutane. Which statement explains the different rates? A The C–Br bond enthalpy is greater than the C–Cl bond enthalpy. B The C–Br bond enthalpy is less than the C–Cl bond enthalpy. C The C–Br bond is less polar than the C–Cl bond. D The C–Br bond is more polar than the C–Cl bond. Your answer [1]
24. June 2022 · AS Paper 1 · Q26(a) · 3 marks · AO1, 2
26 This question is about haloalkanes. (a) 1-Chloropropane, C2H5CH2Cl , can be hydrolysed with aqueous sodium hydroxide, NaOH. Outline the mechanism for this reaction. The structure of 1-chloropropane has been provided. Show curly arrows, relevant dipoles and product(s). H C2H5 C Cl H [3]
25. June 2022 · Paper 2 · Q1 · 1 marks · AO1
1 Which statement is correct for the different rates of hydrolysis of RCl and RBr? A RBr is hydrolysed faster because Cl is more electronegative than Br. B RBr is hydrolysed faster because the C–Cl bond enthalpy is greater than C–Br. C RCl is hydrolysed faster because Cl is more electronegative than Br. D RCl is hydrolysed faster because the C–Br bond enthalpy is greater than C–Cl. Your answer [1]
26. June 2022 · Paper 2 · Q2 · 1 marks · AO1
2 Which statement about absorption of radiation is correct? A Infrared radiation can result in the breakdown of the ozone layer. B Ultraviolet radiation can cause some polymers to photodegrade to benefit the environment. C Ultraviolet radiation is linked to global warming. D Ultraviolet radiation is used in modern breathalysers to measure ethanol in the breath. Your answer [1]
27. June 2022 · Paper 2 · Q14 · 1 marks · AO1
14 Which species could react as a nucleophile? 1 NH3 2 OH– 3 CH3NH2 A 1, 2 and 3 B Only 1 and 2 C Only 2 and 3 D Only 1 Your answer [1]
28. June 2022 · Paper 3 · Q3(b) · 4 marks · AO3
(b) Butan-1-ol reacts with sodium bromide and sulfuric acid to form 1-bromobutane by nucleophilic substitution. The mechanism for this reaction takes place by two steps. Step 1 The oxygen atom of the alcohol group accepts a proton to form a positively- charged intermediate. Step 2 Bromide ions react with the intermediate from Step 1 by nucleophilic substitution to form 1-bromobutane. Show both steps in this mechanism. [4]
29. November 2021 · AS Paper 1 · Q24(c)(i) · 2 marks · AO2
(c) Compound A can be refluxed with a reagent to make alcohol C. (i) Choose a reagent for this reaction and complete the equation for this reaction. Your equation should show the structure of alcohol C. CH3 H H3C C C H + ...................... + ...................... Reagent Br H Compound A Alcohol C [2]
30. November 2021 · Paper 2 · Q15 · 1 marks ·
15 Compounds 1, 2 and 3 are heated with NaOH(aq). Which compound(s) react(s)? OH 1 COOH 2 CH2Br 3 A 1, 2 and 3 B Only 1 and 2 C Only 2 and 3 D Only 1 Your answer [1]
31. November 2021 · Paper 2 · Q17(a) · 3 marks · AO1, 2
17 This question is about haloalkanes and polymers. (a) Freon-13, is a CFC with the molecular formula CCl F3. In the upper atmosphere, the presence of Freon-13 can lead to ozone depletion. Explain, with the aid of equations, how Freon-13 can lead to this ozone depletion. Use ‘dots’ (•) to show the position of unpaired electrons. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [3]
32. November 2021 · Paper 3 · Q1(f) · 3 marks · AO1, 2
(f) The ester, methyl ethanoate, can be synthesised by reacting a haloalkane with a carboxylate ion. The mechanism is nucleophilic substitution. Outline the mechanism for this reaction. [3]
33. November 2020 · AS Paper 1 · Q19 · 1 marks · AO1
19 Which row describes a nucleophile? A electron pair donor attracted to high electron density B electron pair donor attracted to low electron density C electron pair acceptor attracted to high electron density D electron pair acceptor attracted to low electron density Your answer [1]
34. November 2020 · AS Paper 2 · Q5(d)(ii) · 3 marks · AO1, 2
(ii) Outline the mechanism for the alkaline hydrolysis of (CH3)2CHCH2CH2Br. The structure of (CH3)2CHCH2CH2Br has been provided. Show curly arrows, relevant lone pairs and dipoles, and the products. H (CH3)2CHCH2 C Br H [3]
35. November 2020 · AS Paper 2 · Q5(d)(iii) · 1 marks · AO1
(iii) Name this type of mechanism. ...................................................................................................................................... [1]
36. November 2020 · AS Paper 2 · Q5(e) · 2 marks · AO2, 3
(e) The student decides to prepare alcohol A using the same method as in (d) but using the chloroalkane (CH3)2CHCH2CH2Cl instead of the bromoalkane, (CH3)2CHCH2CH2Br. State and explain how the rates of hydrolysis of the chloroalkane and the bromoalkane would differ. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2]
37. November 2020 · Paper 2 · Q14 · 1 marks · AO2
14 Which of the following reactions produce propan-1-ol? 1 The alkaline hydrolysis of 1-chloropropane. 2 The acid hydrolysis of propyl methanoate. 3 The acid hydrolysis of propanenitrile. A 1, 2 and 3 B Only 1 and 2 C Only 2 and 3 D Only 1 Your answer [1]
38. June 2019 · AS Paper 1 · Q19 · 1 marks · AO1
19 Which statement about infrared radiation is not correct? A The energy from IR radiation causes some covalent bonds to vibrate more. B Absorption of IR radiation by some atmospheric gases is linked by some scientists to global warming. C IR radiation is used to monitor gases causing air pollution. D The action of IR radiation on CFCs in the upper atmosphere leads to the formation of chlorine radicals. Your answer [1]
39. June 2019 · AS Paper 2 · Q3(a)(i) · 3 marks · AO2
3 This question is about 1-iodopentane, CH3CH2CH2CH2CH2I. (a) 1-Iodopentane can be hydrolysed by aqueous sodium hydroxide. (i) Outline the mechanism for this reaction. Include curly arrows, relevant dipoles and the final product(s). H CH3CH2CH2CH2 C I H [3]
40. June 2019 · AS Paper 2 · Q3(a)(ii) · 1 marks · AO3
(ii) 1-Iodopentane can also be hydrolysed by water using aqueous silver nitrate, with ethanol as the solvent. A student uses this method to compare the rates of hydrolysis of 1-iodopentane and 1-bromopentane. What measurement and observation would allow the student to compare the rates of hydrolysis? ........................................................................................................................................... ...................................................................................................................................... [1]
41. June 2019 · AS Paper 2 · Q3(a)(iii) · 2 marks · AO3
(iii) 1-Iodopentane was found to react faster than 1-bromopentane. Explain why. ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [2]
42. June 2019 · Paper 2 · Q6 · 1 marks · AO2
6 What is the organic product of the reaction below? CH2Cl KOH(aq) Cl CH2OH A Cl CH2Cl B OH CH2OH C OH HO CH2Cl D Cl Your answer [1]
43. June 2019 · Paper 2 · Q18(a)(ii) · 5 marks · AO2
(ii) In the boxes, draw the organic products for the reactions of the functional groups in ester A shown below. Each reaction forms two organic products. + H+(aq) O Br O Ester A excess OH–(aq) + [5]
44. June 2019 · Paper 2 · Q20(b)(ii) · 1 marks · AO1
(ii) What is the role of OH− in this mechanism? ...................................................................................................................................... [1]
45. June 2018 · AS Paper 1 · Q25(b)(i) · 3 marks ·
(b) An alcohol can be prepared by hydrolysing the haloalkane C2H5CHBrCH3 with aqueous sodium hydroxide. (i) Outline the mechanism for this reaction. Show curly arrows and relevant dipoles. [3]
46. June 2018 · Paper 2 · Q3 · 1 marks ·
3 Which compound does not react with nucleophiles? A CH3CH2CHO B CH3CHCH2 C CH3CH2COCH3 D CH3CH2CH2Cl Your answer [1]
47. June 2018 · Paper 2 · Q8 · 1 marks ·
8 The breakdown of ozone is catalysed by NO radicals. Which equation is a propagation step in the mechanism for this process? A NO + O2 → N + O3 B NO + O2 → NO2 + O C N + O3 → NO + O2 D NO2 + O → NO + O2 Your answer [1]
48. June 2018 · Paper 2 · Q19(a) · 2 marks ·
19 This question is about the hydrolysis of haloalkanes. (a) The rate of hydrolysis of a haloalkane depends on the halogen present. State and explain how the halogen in the haloalkane affects the rate of hydrolysis. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2]
49. June 2018 · Paper 2 · Q19(b) · 3 marks ·
(b) Chlorocyclohexane is hydrolysed with aqueous sodium hydroxide. Outline the mechanism for this reaction. Show curly arrows, relevant dipoles and the products. Cl [3]
50. June 2018 · Paper 2 · Q19(c)(ii) · 3 marks ·
(ii) Analyse the information to identify E, F and G. Show your working. [3]
51. June 2017 · Paper 2 · Q1 · 1 marks ·
1 A chemist compares the rates of hydrolysis of 1-chloropropane and 1-bromopropane in ethanol. Which reagent in aqueous solution should be used? A Silver chloride B Silver nitrate C Potassium chloride D Potassium nitrate Your answer [1]
52. June 2017 · AS Paper 2 · Q6(a)(i) · 2 marks ·
6 Organic compounds can be prepared in the laboratory using synthetic routes with two or more stages. (a) A student devises a two-stage synthesis of cyclohexene from bromocyclohexane. Br Step 1 Step 2 Intermediate E NaOH(aq) bromocyclohexane cyclohexene (i) Suggest the structure of intermediate E and the reagent(s) and conditions for step 2. reagent(s) and conditions .............................................................................................. [2]
53. June 2016 · AS Paper 1 · Q19 · 1 marks ·
10 19 A reaction sequence is shown below: Step 1 CH3CH=CHCH3 + HBr → CH3CH2CHBrCH3 Step 2 CH3CH2CHBrCH3 + NaOH → CH3CH2CH(OH)CH3 + NaBr Which type of reaction mechanism is involved in each step? Step 1 Step 2 A electrophilic addition electrophilic substitution B electrophilic addition nucleophilic substitution C nucleophilic addition electrophilic substitution D nucleophilic addition nucleophilic substitution Your answer [1]
54. June 2016 · AS Paper 1 · Q20 · 1 marks ·
20 When heated with NaOH(aq), 1-iodobutane is hydrolysed at a much faster rate than 1-chlorobutane. Which statement explains the different rates? A The C–I bond enthalpy is greater than the C–Cl bond enthalpy. B The C–I bond is less polar than the C–Cl bond. C The C–I bond has a C atom with a greater δ+ charge than in the C–Cl bond. D The C–I bond requires less energy to break than the C–Cl bond. Your answer [1]
55. June 2016 · AS Paper 1 · Q26(c)(ii) · 3 marks · AO3
(ii) A student plans a two-stage synthesis for preparing compound F from compound B. The synthesis first prepares compound E, as shown in the flowchart. Draw the structure of compound E in the box and state the reagents for each stage on the dotted lines. H CH3 ......................... C C stage 1 H CH3 Compound B Compound E stage 2 ......................... H CH3 HO C C OH H CH3 Compound F [3]
56. June 2016 · AS Paper 2 · Q4(c) · 2 marks · AO1
(c) NO radicals catalyse the breakdown of ozone in the stratosphere. Write two equations to show how NO radicals catalyse this breakdown. ................................................................................................................................................... .............................................................................................................................................. [2]

Mark schemes

1. June 2025 · AS Paper 1 · Q16
Mark scheme June 2025 Paper 1 Q16
2. June 2025 · AS Paper 1 · Q18
Mark scheme June 2025 Paper 1 Q18
3. June 2025 · AS Paper 2 · Q5(d)(i)
Mark scheme June 2025 Paper 2 Q5(d)(i)
4. June 2025 · AS Paper 2 · Q5(d)(ii)
Mark scheme June 2025 Paper 2 Q5(d)(ii)
5. June 2025 · Paper 2 · Q12
Mark scheme June 2025 Paper 2 Q12
6. June 2025 · Paper 2 · Q17
Mark scheme June 2025 Paper 2 Q17
7. June 2025 · Paper 2 · Q19(a)(i)
Mark scheme June 2025 Paper 2 Q19(a)(i)
8. June 2025 · Paper 2 · Q19(a)(ii)
Mark scheme June 2025 Paper 2 Q19(a)(ii)
9. June 2025 · Paper 3 · Q5(a)(iii)
Mark scheme June 2025 Paper 3 Q5(a)(iii)
10. June 2024 · AS Paper 1 · Q19
Mark scheme June 2024 Paper 1 Q19
11. June 2024 · AS Paper 1 · Q25(d)(i)
Mark scheme June 2024 Paper 1 Q25(d)(i)
12. June 2024 · AS Paper 1 · Q25(d)(ii)
Mark scheme June 2024 Paper 1 Q25(d)(ii)
13. June 2024 · Paper 2 · Q3
Mark scheme June 2024 Paper 2 Q3
14. June 2024 · Paper 2 · Q8
Mark scheme June 2024 Paper 2 Q8
15. June 2024 · Paper 2 · Q18(b)
Mark scheme June 2024 Paper 2 Q18(b)
16. June 2024 · Paper 3 · Q5(a)(ii)
Mark scheme June 2024 Paper 3 Q5(a)(ii)
17. June 2024 · Paper 3 · Q5(a)(iii)
Mark scheme June 2024 Paper 3 Q5(a)(iii)
18. June 2023 · AS Paper 1 · Q18
Mark scheme June 2023 Paper 1 Q18
19. June 2023 · AS Paper 2 · Q3(c)
Mark scheme June 2023 Paper 2 Q3(c)
20. June 2023 · AS Paper 2 · Q3(d)(i)
Mark scheme June 2023 Paper 2 Q3(d)(i)
21. June 2023 · AS Paper 2 · Q3(d)(ii)
Mark scheme June 2023 Paper 2 Q3(d)(ii)
22. June 2023 · Paper 3 · Q2(c)
Mark scheme June 2023 Paper 3 Q2(c)
23. June 2022 · AS Paper 1 · Q18
Mark scheme June 2022 Paper 1 Q18
24. June 2022 · AS Paper 1 · Q26(a)
Mark scheme June 2022 Paper 1 Q26(a)
25. June 2022 · Paper 2 · Q1
Mark scheme June 2022 Paper 2 Q1
26. June 2022 · Paper 2 · Q2
Mark scheme June 2022 Paper 2 Q2
27. June 2022 · Paper 2 · Q14
Mark scheme June 2022 Paper 2 Q14
28. June 2022 · Paper 3 · Q3(b)
Mark scheme June 2022 Paper 3 Q3(b)
29. November 2021 · AS Paper 1 · Q24(c)(i)
Mark scheme November 2021 Paper 1 Q24(c)(i)
30. November 2021 · Paper 2 · Q15
Mark scheme November 2021 Paper 2 Q15
31. November 2021 · Paper 2 · Q17(a)
Mark scheme November 2021 Paper 2 Q17(a)
32. November 2021 · Paper 3 · Q1(f)
Mark scheme November 2021 Paper 3 Q1(f)
33. November 2020 · AS Paper 1 · Q19
Mark scheme November 2020 Paper 1 Q19
34. November 2020 · AS Paper 2 · Q5(d)(ii)
Mark scheme November 2020 Paper 2 Q5(d)(ii)
35. November 2020 · AS Paper 2 · Q5(d)(iii)
Mark scheme November 2020 Paper 2 Q5(d)(iii)
36. November 2020 · AS Paper 2 · Q5(e)
Mark scheme November 2020 Paper 2 Q5(e)
37. November 2020 · Paper 2 · Q14
Mark scheme November 2020 Paper 2 Q14
38. June 2019 · AS Paper 1 · Q19
Mark scheme June 2019 Paper 1 Q19
39. June 2019 · AS Paper 2 · Q3(a)(i)
Mark scheme June 2019 Paper 2 Q3(a)(i)
40. June 2019 · AS Paper 2 · Q3(a)(ii)
Mark scheme June 2019 Paper 2 Q3(a)(ii)
41. June 2019 · AS Paper 2 · Q3(a)(iii)
Mark scheme June 2019 Paper 2 Q3(a)(iii)
42. June 2019 · Paper 2 · Q6
Mark scheme June 2019 Paper 2 Q6
43. June 2019 · Paper 2 · Q18(a)(ii)
Mark scheme June 2019 Paper 2 Q18(a)(ii)
44. June 2019 · Paper 2 · Q20(b)(ii)
Mark scheme June 2019 Paper 2 Q20(b)(ii)
45. June 2018 · AS Paper 1 · Q25(b)(i)
Mark scheme June 2018 Paper 1 Q25(b)(i)
46. June 2018 · Paper 2 · Q3
Mark scheme June 2018 Paper 2 Q3
47. June 2018 · Paper 2 · Q8
Mark scheme June 2018 Paper 2 Q8
48. June 2018 · Paper 2 · Q19(a)
Mark scheme June 2018 Paper 2 Q19(a)
49. June 2018 · Paper 2 · Q19(b)
Mark scheme June 2018 Paper 2 Q19(b)
50. June 2018 · Paper 2 · Q19(c)(ii)
Mark scheme June 2018 Paper 2 Q19(c)(ii)
51. June 2017 · Paper 2 · Q1
Mark scheme June 2017 Paper 2 Q1
52. June 2017 · AS Paper 2 · Q6(a)(i)
Mark scheme June 2017 Paper 2 Q6(a)(i)
53. June 2016 · AS Paper 1 · Q19
Mark scheme June 2016 Paper 1 Q19
54. June 2016 · AS Paper 1 · Q20
Mark scheme June 2016 Paper 1 Q20
55. June 2016 · AS Paper 1 · Q26(c)(ii)
Mark scheme June 2016 Paper 1 Q26(c)(ii)
56. June 2016 · AS Paper 2 · Q4(c)
Mark scheme June 2016 Paper 2 Q4(c)