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Amides, polyamides and other polymers: Edexcel International A Level Chemistry questions

Edexcel International A Level Chemistry past-paper questions on 19.2.1 Amides, polyamides and other polymers, 2019–2025, with mark schemes and examiner’s reports where available.

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  1. Q10

    June 2025 · Unit 5

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  2. Q14

    June 2025 (A) · Unit 5

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  3. Q14

    January 2025 · Unit 5

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  4. Q15

    January 2025 · Unit 5

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  6. Q11

    October 2024 · Unit 5

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  7. Q19(b)(i)

    June 2024 · Unit 5

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  9. Q19(b)(iii)

    June 2024 · Unit 5

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  10. Q19(c)(ii)

    June 2024 · Unit 5

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  11. Q19(e)

    June 2024 · Unit 5

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  14. Q20(c)(i)

    October 2023 · Unit 5

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  15. Q20(c)(ii)

    October 2023 · Unit 5

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  19. Q24(c)(i)

    June 2023 · Unit 5

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  20. Q24(c)(ii)

    June 2023 · Unit 5

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All 35 questions on Amides, polyamides and other polymers, as a list
  1. June 2025, Unit 5, Q10 (1 mark): Which is the repeat unit of the polymer formed from the monomers shown? HO OH H2N NH2 O O O O O A N H n O O O B N N H H n O O C N N H H n O O D N N N H H H n
  2. June 2025 (A), Unit 5, Q14 (1 mark): Poly(ethenol) is used to make hospital laundry bags for soiled or contaminated linen. This is because poly(ethenol) is A a bactericide B broken down by detergen
  3. January 2025, Unit 5, Q14 (1 mark): What is the repeat unit of the water‑soluble polymer poly(ethenol)? ( OH H A C C H OH ( H H B C C H OH ( H OH C C C H OH ( OH OH D C C OH OH
  4. January 2025, Unit 5, Q15 (1 mark): A repeat unit for a polyamide is shown. H H N N (CH2)4 (CH2)6 C C O O Which pair of monomers makes this polymer? A H2N(CH2)6NH2 and HOOC(CH2)4COOH B NC(CH2)6CN
  5. October 2024, Unit 4, Q15 (1 mark): Which monomer could form a condensation polymer without needing a second type of monomer? A HO(CH2)4OH B HO(CH2)4COCl C HO(CH2)4CH CH2 D HO(CH2)4CH2Cl
  6. October 2024, Unit 5, Q11 (1 mark): The polymer, nylon 6-10, is made from a six-carbon diamine and a ten-carbon dicarboxylic acid. Which is the repeat unit of this nylon? O O A N (CH2)10 N C C (CH
  7. June 2024, Unit 5, Q19(b)(i) (2 marks): Draw the structure of poly(ethenol), showing three repeat units. (2)
  8. June 2024, Unit 5, Q19(b)(ii) (2 marks): Use your structure from 19(b)(i) to calculate the percentage of hydroxyl groups by mass in the polymer. (2)
  9. June 2024, Unit 5, Q19(b)(iii) (2 marks): Explain why poly(ethenol) is soluble in water using your answers from 19(b)(i) and (ii). (2)
  10. June 2024, Unit 5, Q19(c)(ii) (1 mark): Suggest one way that the properties of poly(ethenol) will be improved by the use of glycerol, apart from any effect on solubility. (1)
  11. June 2024, Unit 5, Q19(e) (2 marks): Some hospitals use poly(ethenol) laundry bags instead of reusable, washable polyester or nylon bags. State two advantages of using soluble poly(ethenol) laundry
  12. January 2024, Unit 5, Q7 (1 mark): Peptides are short chains of amino acids linked by peptide bonds. COOH NH COOH O O O O H H H N N N H2N N N N N COOH H H H H O O O COOH COOH COOH How many differ
  13. January 2024, Unit 5, Q11 (1 mark): The formulae of three synthetic polymers, X, Y and Z, are shown. H N n n n Cl O O NH2 X Y Z Which are made by addition polymerisation reactions? A X, Y and Z B
  14. October 2023, Unit 5, Q20(c)(i) (1 mark): Draw the repeat unit of the polyamide formed from the monomers shown. O O C C H2N(CH2 )6 NH2 and Cl Cl (1)
  15. October 2023, Unit 5, Q20(c)(ii) (2 marks): Explain why polyamides have higher melting temperatures than polyalkenes. (2)
  16. June 2023, Unit 5, Q24(a)(i) (1 mark): PAM is made from the acrylamide monomer. O NH2 acrylamide Give the IUPAC name for acrylamide. (1)
  17. June 2023, Unit 5, Q24(a)(ii) (3 marks): Explain why PAM is able to absorb large amounts of water. Include a diagram in your answer. (3)
  18. June 2023, Unit 5, Q24(a)(iii) (2 marks): The structure of PAA in aqueous solution is pH-dependent. Below pH 4, the structure of PAA is compact due to the formation of intramolecular hydrogen bonds. Abo
  19. June 2023, Unit 5, Q24(c)(i) (2 marks): State what is meant by the term condensation polymer. (2)
  20. June 2023, Unit 5, Q24(c)(ii) (2 marks): The structure of nylon 6,6 is shown. H O N N n O H nylon 6,6 Nylon 6,6 is made from two monomers. Deduce the structural formulae of these two monomers. (2) stru
  21. June 2023, Unit 5, Q24(c)(iii) (2 marks): Caprolactam can be directly converted to give a different polymer, nylon 6, in a ring-opening polymerisation reaction. O NH caprolactam Draw two repeat units of
  22. June 2023, Unit 5, Q25(d)(iv) (1 mark): Deduce the skeletal formula of the reagent for Step 3. (1)
  23. January 2023, Unit 5, Q14 (1 mark): A polyamide has the repeat unit O O C C N N H H Which of these monomers can form this polyamide? O A H2N C only OH O O B H2N C C NH2 only O O C H2N C C NH2 and
  24. January 2023, Unit 5, Q19(c)(ii) (1 mark): Draw the structure of the dipeptide formed from phenylalanine. (1)
  25. January 2023, Unit 5, Q19(c)(v) (3 marks): Aspartame is hydrolysed by hydrochloric acid in the stomach. Draw the structures of the three organic products formed from the complete acid hydrolysis of aspar
  26. October 2022, Unit 5, Q15 (1 mark): The structure of crotonamide is shown. O H C NH2 C C CH3 H What is the repeat unit of the polymer formed from crotonamide? NH2 H H H H C O C C C A B C C H H C O
  27. June 2022, Unit 5, Q7(c) (1 mark): The repeat unit of another polymer has the structure shown. H CH3 C C H H H C O C C OH O H H This polymer is formed from (1) A a single type of monomer by an ad
  28. January 2022, Unit 5, Q12(a) (2 marks): The diagram shows part of the structure of a polymer formed by a condensation reaction between two amino acids. H2N O H O N N H O S Predict the structures of th
  29. October 2021, Unit 5, Q15 (1 mark): How many different amino acids form the repeat unit of the polymer shown?      O O O A 3 B 4 C 5 D 6
  30. June 2021, Unit 5, Q12 (1 mark): Which type of compound cannot be a monomer in the formation of polyamides? A amides B amino acids C diacyl chlorides D diamines
  31. June 2021, Unit 5, Q19(b)(ii) (1 mark): Suggest the functional group present in Y. (1)
  32. January 2021, Unit 5, Q14 (1 mark): The repeat unit of a polymer is shown. n O NH2 What is the structure of the monomer? O A NH2 O B NH2 O C NH2 O D NH2
  33. January 2021, Unit 5, Q15 (1 mark): The repeat unit of a polymer is shown. O H O H H H H H C C C N C C C N CH3 H H H This polymer could be A both a polypeptide and a polyamide B neither a polypept
  34. October 2020, Unit 5, Q10 (1 mark): Part of the structure of a protein is shown. OH O O O H H H N N N N N N H H H O O O OH OH How many different amino acids were used to form this part of the stru
  35. January 2020, Unit 4, Q3 (1 mark): A polymer is prepared by the reaction between hexanedioyl dichloride and hexane-1-6-diamine. What type of polymerisation occurs? A addition B condensation C hyd

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