C11.7· 35 questions · 35 marks · 42 min · 2017–2025· Multiple choice
Every Cambridge IGCSE Sciences - Co-ordinated (Double) Paper 2 question on polymers, laid out as 12 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.


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12 / 12Answers below. Sit the paper first if you are practising.
Pastlit
Sciences - Co-ordinated (Double) 0654 · Polymers — Paper 2
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | C | 1 | 0654/21 May/June 2017 |
| 2 | C | 1 | 0654/22 May/June 2017 |
| 3 | C | 1 | 0654/23 May/June 2017 |
| 4 | B | 1 | 0654/21 Oct/Nov 2018 |
| 5 | A | 1 | 0654/22 Oct/Nov 2018 |
| 6 | A | 1 | 0654/23 Oct/Nov 2018 |
| 7 | A | 1 | 0654/21 May/June 2019 |
| 8 | D | 1 | 0654/22 May/June 2019 |
| 9 | B | 1 | 0654/21 Oct/Nov 2019 |
| 10 | B | 1 | 0654/23 Oct/Nov 2019 |
| 11 | D | 1 | 0654/21 May/June 2020 |
| 12 | C | 1 | 0654/21 Oct/Nov 2020 |
| 13 | C | 1 | 0654/22 Oct/Nov 2020 |
| 14 | C | 1 | 0654/23 Oct/Nov 2020 |
| 15 | C | 1 | 0654/22 May/June 2021 |
| 16 | D | 1 | 0654/21 May/June 2022 |
| 17 | B | 1 | 0654/22 May/June 2022 |
| 18 | C | 1 | 0654/23 May/June 2022 |
| 19 | B | 1 | 0654/21 Oct/Nov 2022 |
| 20 | B | 1 | 0654/22 Oct/Nov 2022 |
| 21 | A | 1 | 0654/23 Oct/Nov 2022 |
| 22 | A | 1 | 0654/21 May/June 2023 |
| 23 | B | 1 | 0654/22 May/June 2023 |
| 24 | D | 1 | 0654/23 May/June 2023 |
| 25 | B | 1 | 0654/21 Oct/Nov 2023 |
| 26 | D | 1 | 0654/22 Oct/Nov 2023 |
| 27 | A | 1 | 0654/23 Oct/Nov 2023 |
| 28 | B | 1 | 0654/21 May/June 2024 |
| 29 | A | 1 | 0654/22 May/June 2024 |
| 30 | D | 1 | 0654/23 May/June 2024 |
| 31 | B | 1 | 0654/21 Oct/Nov 2024 |
| 32 | C | 1 | 0654/22 Feb/March 2025 |
| 33 | D | 1 | 0654/22 May/June 2025 |
| 34 | D | 1 | 0654/21 Oct/Nov 2025 |
| 35 | B | 1 | 0654/23 Oct/Nov 2025 |
27 Which statement about a protein is not correct? A It can be hydrolysed by acids and by alkalis. B It is a natural macromolecule. C It is made from only one monomer. D It possesses the same amide linkages as nylon.
1 marks
Answer: C
27 Collagen is a protein. Boiling collagen with dilute acid produces amino acids. What is the name of this process? A condensation B cracking C hydrolysis D polymerisation
1 marks
Answer: C
27 What is the structure of poly(ethene) and what type of polymerisation is used to make it? type of structure of polymer polymerisation O O A C C N N addition H H n O O B C C N N condensation H H n H H C C C addition H H n H H D C C condensation H H n
1 marks
Answer: C
27 Nylon is a condensation polymer. Which diagram represents the structure of nylon? A B H H H H H H O O C C C C C C C C N N H H H H H H H H C D O O O H Cl H Cl H Cl C C O O C C C C C C C H H H H H H
1 marks
Answer: B
27 Which statement about proteins is not correct? A They are formed by addition polymerisation. B They are macromolecules. C They can be hydrolysed by acids. D They consist of amino acids joined by amide linkages.
1 marks
Answer: A
27 The molecule shown contains some amide linkages. OH CH3 H O H2C CH N C CH O H2N C CH N C O H O CH2 H N C C CH3 H CH N C C O OH CH3 H O OH How many amide linkages are present in this molecule? A 4 B 6 C 7 D 9
1 marks
Answer: A
27 Which diagram represents part of the structure of nylon? A B O O O O C N N C C CH CH C H H H H C D H H H H H H H H H H H H C C C C C C C C C C C C C C C C H H H H H H H H H H H H
1 marks
Answer: A
27 Compound X is the monomer in an addition polymerisation reaction. Which statement describes a molecule of X? A It has an acidic end and basic end. B It has two acidic ends. C It is a long chain molecule with a high molecular mass. D It is an alkene.
1 marks
Answer: D
27 Which diagram represents the structure of nylon? A B O O O N C N N C C H H H C D O O O H N N H C C N N C O C H H
1 marks
Answer: B
27 A section of a polymer chain is shown. H H Cl H H H Cl H C C C C C C C C Cl H H H Cl H H H Which monomer is used to make this polymer? A B C D H Cl H H H H H H Cl H C C C C H C C H H C C C C Cl H Cl H Cl H Cl H H
1 marks
Answer: B
27 Which row matches the name of a polymer to the formula of the monomer from which it is made? polymer monomer A poly(ethene) C2H2 B poly(ethene) C2H6 C poly(propene) C2H4 D poly(propene) C3H6
1 marks
Answer: D
27 Poly(ethene) is made from ethene by the process of addition polymerisation. Which word describes ethene in this process? A fuel B catalyst C monomer D solvent
1 marks
Answer: C
27 Poly(ethene) is made from ethene by the process of addition polymerisation. Which word describes ethene in this process? A fuel B catalyst C monomer D solvent
1 marks
Answer: C
27 Poly(ethene) is made from ethene by the process of addition polymerisation. Which word describes ethene in this process? A fuel B catalyst C monomer D solvent
1 marks
Answer: C
27 Reactants for three chemical processes are listed. 1 ethene + steam 2 ethene + hydrogen 3 ethene in addition polymerisation Which processes form saturated hydrocarbons? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3
1 marks
Answer: C
27 A section of a polymer made from two different monomers is shown. O H H O H H H O C C N C C C N H H H Which monomers are used to make this polymer? A HO2CCH2CO2H and H2NCH2NH2 B HO2CCH2CO2H and H2NCH2CH2NH2 C HO2CCH2CH2CO2H and H2NCH2NH2 D HO2CCH2NH2 and HO2CCH2CH2NH2
1 marks
Answer: D
27 The structure of a monomer is shown. H3C CH2CH3 C C H H Which diagram represents the structure of the polymer formed from this monomer by addition polymerisation? A B H H H H H CH3 CH2CH3 CH3 CH2CH3 C C C C C C C C C H H H H H H H H H C D CH3 CH3 CH3 CH3 H CH2CH3 H CH2CH3 C C C C C C C C CH3 H CH3 H H CH3 H CH3
1 marks
Answer: B
27 The structure of a monomer is shown. CH3 H C C H CH3 Which structure represents the addition polymer formed by this monomer? A B CH3 H CH3 H CH3 H CH3 H CH3 H CH3 H C C C C C C C C C C C C H CH3 H CH3 H CH3 H CH3 H CH3 H CH3 C D CH3 H CH3 H CH3 H H CH3 H CH3 H CH3 C C C C C C C C C C C C H CH3 H CH3 H CH3 H CH3 H CH3 H CH3
1 marks
Answer: C
27 The structure of the monomer chloroethene is shown. H H C C H Cl What is the structure of the polymer formed from this monomer? A B H H H H H H H H C C C C C C C C H H H H n H Cl H Cl n C D H H H H Cl H Cl H C C C C C C C C H Cl H Cl n H Cl H Cl n
1 marks
Answer: B
27 Which diagram represents the structure of nylon? CH3 H CH3 H CH3 H CH3 H CH3 H CH3 A C C C C C C C C C C C H H H H H H H H H H H O O O O B C C N N C C N N H H H H O O O O C C C O O C C O O H O H O H O D N C N C N C
1 marks
Answer: B
27 Which statement describes addition polymers? A They contain long chains made from only one type of monomer. O B They contain C N links. H C They contain carbon-carbon double bonds. O D They contain C O links.
1 marks
Answer: A
27 Which structure represents the addition polymer made from the monomer propene, C3H6? A B CH3 H CH3 H H H H H C C C C C C C C H H H H H H H H C D CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 C C C C C C C C H H H H CH3 CH3 CH3 CH3
1 marks
Answer: A
27 The structure of an addition polymer is shown. H CH3 C C CH3 H n Which monomer is used to make this polymer? A B C D H H CH3 CH3 H H H CH3 C C C C C C C C H H H H CH3 H H CH3
1 marks
Answer: B
27 What is the structure of the addition polymer formed from but-2-ene? A B H H H H CH3 H C C C C C C H H H H n CH3 H n C D H H CH3 H C C C C H CH2CH3 n H CH3 n
1 marks
Answer: D
27 Which statements about monomers and polymers are correct? 1 Different polymers can have different linkages between monomers. 2 An addition polymerisation reaction produces more than one type of polymer. 3 Addition polymers are made from saturated monomer molecules. 4 Nylon is a condensation polymer formed from two different monomers. A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
27 Which row about the formation of condensation polymers is correct? monomer description product formation A contains C=C double bond the condensation polymer only B contains C=C double bond the condensation polymer and a small molecule C two different monomers used the condensation polymer only D two different monomers used the condensation polymer and a small molecule
1 marks
Answer: D
27 The structure of the monomer chloroethene is shown. H H C C H Cl What is a part of the structure of the addition polymer formed from this monomer? A B H H H H H Cl H Cl C C C C C C C C H Cl H Cl Cl H Cl H C D Cl H Cl H H H H C C C C C C C C Cl H Cl H Cl Cl
1 marks
Answer: A
27 Which molecules can be used as monomers in polymerisation processes? 1 2 H Cl H H C C H C C O H H H H H 3 4 O H H H O H H H H O C C C C N H H O C C C C H H H H H H H H A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
1 marks
Answer: B
27 The molecule shown contains some amide linkages, N C . H OH CH3 H O H2C CH N C CH O H2N C CH N C O H O CH2 H N C C CH3 H CH N C C O OH CH3 H O OH How many amide linkages are present in this molecule? A 4 B 5 C 6 D 9
1 marks
Answer: A
27 The structure of a monomer is shown. H CH3 HO C C H Which structure represents a section of the addition polymer that is formed from this monomer? A B C D H H H H H H CH3 H H H C C C O C C C C C C C OH H H H H H OH H OH CH3
1 marks
Answer: D
27 Poly(ethene) and nylon are two different types of polymer. Which statement about these polymers is correct? A Nylon is an addition polymer. B The linkage between monomers in nylon is –CONH–. C Poly(ethene) and nylon are made from the same monomers. D Poly(ethene) and nylon have the same linkages between their monomers.
1 marks
Answer: B
26 Which row shows the structure of poly(ethene) and the type of polymerisation used to make it? type of structure of polymer polymerisation O O A C C N N addition H H n O O B C C N N condensation H H n H H C C C addition H H n H H D C C condensation H H n
1 marks
Answer: C
27 Which diagram represents the structure of nylon? A B H H H H O O C C C C C C N N H H H H H H C D CH3 H CH3 H O O C C C C C C N N H H H H H H
1 marks
Answer: D
25 A section of polymer X is shown. CH3 H C C H CH3 n Which statement about X is correct? A It is a condensation polymer made from but-1-ene. B It is an addition polymer made from but-1-ene. C It is a condensation polymer made from but-2-ene. D It is an addition polymer made from but-2-ene.
1 marks
Answer: D
27 Which statement about polymerisation is correct? A Addition polymerisation requires monomers from different homologous series. B Condensation polymerisation produces a small molecule as well as a polymer. C Polymerisation always produces polymers of the same chain length. D The formation of poly(ethene) is by condensation polymerisation.
1 marks
Answer: B