IGCSE Practice

Cambridge IGCSE·Co-ordinated Sciences 0654·Chemistry Polymers
📋Key knowledge — Organic Chemistry

Formulas & equations

  • Combustion of alkane: CₙH₂ₙ₊₂ + O₂ → CO₂ + H₂O
  • Addition of H₂ to alkene: CₙH₂ₙ + H₂ → CₙH₂ₙ₊₂ (hydrogenation)
  • Fermentation: C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ (ethanol production)
  • Esterification: alcohol + carboxylic acid ⇌ ester + water (concentrated H₂SO₄ catalyst)

Key facts & rules

  • Alkanes: saturated (only C−C single bonds). General formula CₙH₂ₙ₊₂. Methane (CH₄), ethane (C₂H₆), propane, butane.
  • Alkenes: unsaturated (contain C=C double bond). General formula CₙH₂ₙ. Ethene (C₂H₄), propene.
  • Test for alkene: bromine water → decolourises (goes from orange to colourless).
  • Cracking: long-chain alkanes → shorter alkanes + alkenes (thermal or catalytic cracking).
  • Addition polymerisation: alkene monomers → polymer (e.g. ethene → poly(ethene)).
  • Fractional distillation of crude oil: different chain lengths have different boiling points — separated by size.

IGCSE Chemistry — Polymers

44 Cambridge IGCSE 0654 questions on polymers, across all three components.

About polymers on IGCSE 0654

Every Cambridge IGCSE Co-ordinated Sciences 0654 question on polymers (Organic chemistry, Chemistry), across all three exam components. Theory and alternative-to-practical come with full mark schemes; multiple choice is interactive — click an option to check it.

Theory

Papers 3 & 4 · 7 questions · Structured written questions, each with its full mark scheme.
Polymers — Extended theory questions7 total · Paper 4

Exercise 1 — IGCSE 0654 Jun 2025 Paper 42 Q6

Cambridge past paperExtended10 marks Paper 42Jun 2025
IGCSE 0654 Jun 2025 Paper 42 Question 6 — Polymers
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Mark scheme for IGCSE 0654 Jun 2025 Paper 42 Q6

Exercise 2 — IGCSE 0654 Nov 2025 Paper 43 Q5

Cambridge past paperExtended10 marks Paper 43Nov 2025
IGCSE 0654 Nov 2025 Paper 43 Question 5 — Polymers
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Mark scheme for IGCSE 0654 Nov 2025 Paper 43 Q5

Exercise 3 — IGCSE 0654 Mar 2025 Paper 42 Q7

Cambridge past paperExtended9 marks Paper 42Mar 2025
IGCSE 0654 Mar 2025 Paper 42 Question 7 — Polymers
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Mark scheme for IGCSE 0654 Mar 2025 Paper 42 Q7
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Multiple choice

Papers 1 & 2 · 37 questions · Click an option (A–D) to check your answer instantly.
Polymers — Core multiple choice questions16 total · Paper 1

Exercise 1 — IGCSE 0654 May/June 2025 Paper 11 Q25

Cambridge past paperCore1 mark Paper 11May/June 2025
IGCSE 0654 May/June 2025 Paper 11 Question 25 — Polymers
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Correct answer: C

Exercise 2 — IGCSE 0654 Oct/Nov 2025 Paper 11 Q26

Cambridge past paperCore1 mark Paper 11Oct/Nov 2025
IGCSE 0654 Oct/Nov 2025 Paper 11 Question 26 — Polymers
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Correct answer: B

Exercise 3 — IGCSE 0654 May/June 2024 Paper 11 Q26

Cambridge past paperCore1 mark Paper 11May/June 2024
IGCSE 0654 May/June 2024 Paper 11 Question 26 — Polymers
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Correct answer: D

Exercise 4 — IGCSE 0654 May/June 2024 Paper 12 Q24

Cambridge past paperCore1 mark Paper 12May/June 2024
IGCSE 0654 May/June 2024 Paper 12 Question 24 — Polymers
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Correct answer: B
Polymers — Extended multiple choice questions21 total · Paper 2

Exercise 5 — IGCSE 0654 Oct/Nov 2025 Paper 21 Q25

Cambridge past paperExtended1 mark Paper 21Oct/Nov 2025
IGCSE 0654 Oct/Nov 2025 Paper 21 Question 25 — Polymers
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Correct answer: D

Exercise 6 — IGCSE 0654 May/June 2025 Paper 21 Q32

Cambridge past paperExtended1 mark Paper 21May/June 2025
IGCSE 0654 May/June 2025 Paper 21 Question 32 — Polymers
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Correct answer: C

Exercise 7 — IGCSE 0654 March 2025 Paper 22 Q26

Cambridge past paperExtended1 mark Paper 22March 2025
IGCSE 0654 March 2025 Paper 22 Question 26 — Polymers
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Correct answer: C

Exercise 8 — IGCSE 0654 Oct/Nov 2025 Paper 22 Q26

Cambridge past paperExtended1 mark Paper 22Oct/Nov 2025
IGCSE 0654 Oct/Nov 2025 Paper 22 Question 26 — Polymers
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Correct answer: A
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More Organic chemistry subtopics