plumiPolyesters and polyamides: OCR A‑Level Chemistry A questions
Every OCR A-Level Chemistry A exam question on 6.2.3 Polyesters and polyamides, 2016–2025, with its mark scheme and examiner’s report.
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Q18(a)
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Q18(b)(ii)
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Q20(c)
The whole paper ↗![June 2024 Paper 2, question 20(c): The repeat unit of a polyester is shown below. O O O O Draw the structures of monomers required to form this polyester. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-jun24-20-c-qp.webp?v=3)
Q20(d)
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Q22(a)
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Q22(b)
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Q20(b)(i)
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Q21(c)(ii)
The whole paper ↗![June 2023 Paper 2, question 21(c)(ii): A student hydrolyses compound E with dilute hydrochloric acid, HCl (aq). Draw the structures of the organic products formed by this hydrolysis. [4]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-jun23-21-cii-qp.webp?v=3)
Q19(c)(ii)
The whole paper ↗![June 2022 Paper 2, question 19(c)(ii): Butanedicarboxylic acid and 1,4-dihydroxy-2-methylbenzene react to form a condensation polymer. Draw one repeat unit of this condensation polymer. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-jun22-19-cii-qp.webp?v=3)
Q19(c)(iii)
The whole paper ↗![June 2022 Paper 2, question 19(c)(iii): Three repeat units of a condensation polymer are shown below. O O O O O O O O O O O O Draw the structure of the monomer required to form this polymer. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-jun22-19-ciii-qp.webp?v=3)
Q19(d)(i)
The whole paper ↗![June 2022 Paper 2, question 19(d)(i): Draw one repeat unit of this polymer. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-jun22-19-di-qp.webp?v=3)
Q19(d)(ii)
The whole paper ↗![June 2022 Paper 2, question 19(d)(ii): What is the relative molecular mass, Mr, of the polymer? Mr = [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-jun22-19-dii-qp.webp?v=3)
Q17(c)
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Q18(b)(i)
The whole paper ↗![November 2020 Paper 2, question 18(b)(i): Draw one repeat unit of polymer E. The functional groups should be clearly displayed. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-nov20-18-bi-qp.webp?v=3)
Q18(b)(ii)
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Q21(b)(ii)
The whole paper ↗![November 2020 Paper 2, question 21(b)(ii): A sample of aspartame is hydrolysed with aqueous acid. Draw the structures of the three organic products of the complete acid hydrolysis of aspartame. [4]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-nov20-21-bii-qp.webp?v=3)
Q18(d)
The whole paper ↗![June 2019 Paper 2, question 18(d): A polyester is formed from 200 molecules of 4-hydroxybenzoic acid. What is the relative molecular mass, Mr, of the polyester? Mr = g mol−1 [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h43202-jun19-18-d-qp.webp?v=3)
All 27 questions on Polyesters and polyamides, as a list
- June 2025, Paper 2, Q7 (1 mark): What are the organic products of the acid hydrolysis of CH3CH2CONHCH3? CH3CH2COO– + CH3NH3 + A + B CH3CH2COOH + CH3NH3 C CH3CH2COOH + CH3NH2 CH3CH2COO– + CH3NH2
- 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, Paper 2, Q18(b)(ii) (1 mark): The polymer formed from 3-hydroxybutanoic acid can be hydrolysed. This makes the polymer biodegradable. Suggest what feature in the structure of this polymer al
- June 2024, Paper 2, Q12 (1 mark): 1,6-Diaminohexane, H2N(CH2)6NH2, reacts with hexanedioyl dichloride, Cl OC(CH2)4COCl to form a polyamide and one other product. What is the other product formed
- June 2024, Paper 2, Q20(c) (2 marks): The repeat unit of a polyester is shown below. O O O O Draw the structures of monomers required to form this polyester. [2]
- June 2024, Paper 2, Q20(d) (4 marks): The compound below contains an ester and an amide group. O N O H O Draw the structures of the organic products formed by the complete alkaline hydrolysis of thi
- June 2024, Paper 2, Q22(a) (3 marks): A polymer is formed from 500 molecules of this α-amino acid. Determine the molar mass of this polymer. Give your answer to the nearest whole number. molar mass
- 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 2023, Paper 2, Q20(b)(i) (3 marks): A student predicts that PAS could polymerise to form a polymer containing both ester and amide linkages. Draw a section of this polymer. The section should cont
- June 2023, Paper 2, Q21(c)(ii) (4 marks): A student hydrolyses compound E with dilute hydrochloric acid, HCl (aq). Draw the structures of the organic products formed by this hydrolysis. [4]
- June 2022, Paper 2, Q19(c)(ii) (2 marks): Butanedicarboxylic acid and 1,4-dihydroxy-2-methylbenzene react to form a condensation polymer. Draw one repeat unit of this condensation polymer. [2]
- June 2022, Paper 2, Q19(c)(iii) (1 mark): Three repeat units of a condensation polymer are shown below. O O O O O O O O O O O O Draw the structure of the monomer required to form this polymer. [1]
- June 2022, Paper 2, Q19(d)(i) (1 mark): Draw one repeat unit of this polymer. [1]
- June 2022, Paper 2, Q19(d)(ii) (2 marks): What is the relative molecular mass, Mr, of the polymer? Mr = [2]
- November 2021, Paper 2, Q17(c) (4 marks): A polymer can be made from the monomers: • 1,4-diaminobutane • benzene-1,4-diacyl dichloride. Draw the structures of these monomers and one repeat unit of the p
- November 2020, Paper 2, Q18(b)(i) (2 marks): Draw one repeat unit of polymer E. The functional groups should be clearly displayed. [2]
- November 2020, Paper 2, Q18(b)(ii) (1 mark): Governments are encouraging the development of biodegradable polymers to reduce dependency on persistent plastic waste derived from fossil fuels. Polymer E is a
- November 2020, Paper 2, Q21(b)(ii) (4 marks): A sample of aspartame is hydrolysed with aqueous acid. Draw the structures of the three organic products of the complete acid hydrolysis of aspartame. [4]
- June 2019, Paper 2, Q9 (1 mark): The repeat unit of a polymer is shown below. H H H H O O C C O C C C C H H O H H Which monomers could form this polymer? O OH HO A OH HO O O OH HO OH B HO O O O
- June 2019, Paper 2, Q18(d) (2 marks): A polyester is formed from 200 molecules of 4-hydroxybenzoic acid. What is the relative molecular mass, Mr, of the polyester? Mr = g mol−1 [2]
- 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 2018, Paper 2, Q17(c) (3 marks): α-Amino acids can react to form proteins. A short section of a protein chain is shown below. HO H O CH2 CH N C N C CH CH2 H O CH2 C O H2N A student hydrolyses t
- June 2018, Paper 2, Q21(b) (4 marks): Compound H is used in the synthesis of polymer I, as shown in the flowchart below. Complete the flowchart by drawing the structure of the acyl chloride and two
- June 2017, Paper 2, Q18(a)(iv) (3 marks): Compound I is the monomer for the biodegradable polymer J. Draw two repeat units of polymer J and suggest a reason why it is biodegradable. [3]
- June 2017, Paper 2, Q18(b)(i) (2 marks): Draw the structures of two monomers that can be used to form Nylon 6,6. [2]
- June 2017, Paper 2, Q18(b)(ii) (1 mark): A sample of Nylon 6,6 has a relative molecular mass of 21500. Estimate the number of repeat units in the sample. Give your answer as a whole number. number of r
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