plumiAddition polymers and repeat units: OCR A‑Level Chemistry A questions
OCR A-Level Chemistry A past-paper questions on 4.1.3.5 Addition polymers and repeat units, 2016–2025, with mark schemes and examiner’s reports where available.
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Q18(a)
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All 19 questions on Addition polymers and repeat units, as a list
- June 2025, Paper 2, Q18(a) (4 marks): 1-Chlorobut-2-ene and 3-hydroxybutanoic acid can both form polymers. Draw two repeat units of each of the polymers formed. State the type of polymerisation reac
- June 2025, AS Paper 1, Q24(a)(i) (1 mark): Draw two repeat units of the polymer formed by 2-chloropropene. [1]
- June 2024, Paper 2, Q22(b) (3 marks): The amino acid below can form addition and condensation polymers. H H O C C H CH C H2N OH Draw 2 repeat units of these polymers. Display the sections linking th
- June 2024, AS Paper 1, Q17 (1 mark): The repeat unit of an addition polymer is shown below. CH3 Cl C C H H Which statement about this addition polymer is correct? A Combustion produces toxic alkali
- June 2023, AS Paper 2, Q5(b)(i) (2 marks): Draw a section of the polymer formed, showing two repeat units, and suggest why this polymer is likely to be soluble in water. Section of polymer (two repeat un
- June 2022, Paper 2, Q19(c)(i) (2 marks): Poly(pent-3-enoic acid) is an addition polymer. Draw the structure of pent-3-enoic acid and two repeat units of this polymer. Pent-3-enoic acid Two repeat units
- June 2022, AS Paper 1, Q21(b)(i) (1 mark): Draw one repeat unit for this polymer. [1]
- November 2021, Paper 2, Q17(b)(i) (1 mark): Draw the repeat unit of this oligomer. [1]
- November 2021, AS Paper 1, Q20 (1 mark): The repeat unit of an addition polymer is shown below. H CH2OH C C H H What is the monomer? OH A B OH OH C D OH Your answer [1]
- November 2020, Paper 2, Q5 (1 mark): Which structure shows a section of poly(propene)? A B C D Your answer [1]
- November 2020, AS Paper 1, Q25(a) (3 marks): Two reactions of propene are shown below. In the boxes, show the structures of the organic products of the reactions. H CH3 polymerisation C C H H one repeat un
- June 2019, Paper 2, Q19(b)(i) (3 marks): Draw two repeat units of these polymers. Two repeat units of polymer formed from D Two repeat units of polymer formed from E [3]
- June 2019, Paper 2, Q19(b)(ii) (1 mark): State the type of polymer formed from compounds D and E. From compound D From compound E [1]
- June 2019, AS Paper 1, Q17 (1 mark): A section of a polymer is shown below. CN CN CN Which monomer could form this polymer? A CH3CH(OH)CN B HOCH2CH2CN C H2C=CHCN D NCCH=CHCN Your answer [1]
- June 2019, AS Paper 2, Q5(c)(i) (1 mark): Draw a section of poly(hex-1-ene) containing two repeat units. [1]
- June 2018, Paper 2, Q16(c) (3 marks): The flowchart below shows some reactions of compound C. In the boxes, draw the organic products of these reactions. excess CH3OH/H2SO4 Steam COOH HOOC H3PO4 com
- June 2018, AS Paper 2, Q6(c)(i) (2 marks): Write a balanced equation for this reaction. Show displayed formulae. [2]
- June 2017, AS Paper 1, Q21(b)(i) (2 marks): Write a balanced equation for the formation of this polymer. The equation should include the structure of the repeat unit of the polymer. [2]
- June 2016, AS Paper 1, Q26(b) (2 marks): Some reactions involving compound B are shown in the flowchart below. Complete the flowchart, showing the structures of organic compounds C and D. H CH3 concent
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