Lesson 6C.3

6C.3 Addition polymers and polymer waste Quiz: Pearson Edexcel Chemistry, Unit 6

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 6C.3, Addition polymers and polymer waste: 20 multiple choice questions for the Pearson Edexcel Chemistry (9CH0), Unit 6: Organic Chemistry I, written with Revision Ninja.

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The 20 questions

  1. What is the repeat unit of poly(ethene) formed from the monomer ethene?

    • -CH2-CH2-
    • -CH=CH-
    • -CH(CH3)-CH2-
    • -CH2-CH2-CH2-

  2. Which monomer gives the repeat unit -CH(CH3)-CH2-?

    • But-1-ene, CH2=CHCH2CH3
    • Ethene, CH2=CH2
    • Propane, CH3CH2CH3
    • Propene, CH2=CHCH3

  3. What is the repeat unit of poly(chloroethene), commonly called PVC?

    • -CH2-CH2-Cl-
    • -CHCl-CHCl-
    • -CH2-CHCl-
    • -CCl2-CH2-

  4. What type of polymerisation forms poly(ethene) from ethene monomers?

    • Condensation polymerisation
    • Step-growth polymerisation
    • Free radical substitution
    • Addition polymerisation

  5. Which waste polymer management method generates usable energy during processing?

    • Mechanical recycling
    • Feedstock recycling
    • Incineration
    • Landfill disposal

  6. Why must waste polymers be sorted by type before mechanical recycling?

    • Chemical cross-linking
    • Different melting properties
    • Identical densities
    • Polymer decomposition

  7. Which toxic gas is produced when poly(chloroethene) is incinerated?

    • Hydrogen chloride
    • Chlorine gas
    • Carbon monoxide
    • Sulfur dioxide

  8. How can persistence of plastics in the environment be reduced?

    • Burning all waste
    • Adding plasticisers
    • Increasing landfill usage
    • Developing biodegradable polymers

  9. Which waste polymer treatment converts plastics into smaller hydrocarbon feedstocks?

    • Composting
    • Mechanical recycling
    • Feedstock recycling
    • Incineration

  10. What is the monomer for the polymer with repeat unit -CF2-CF2-?

    • Difluoroethene, CHF=CHF
    • Ethene, CH2=CH2
    • Tetrafluoromethane, CF4
    • Tetrafluoroethene, CF2=CF2

  11. What tool evaluates the total environmental impact of a polymer from raw material to disposal?

    • Atom economy calculation
    • Carbon footprint audit
    • Mass balance report
    • Life cycle assessment

  12. How does the empirical formula of an addition polymer compare to its monomer?

    • Contains extra oxygen
    • Fewer carbon atoms
    • Identical
    • Lacks hydrogen atoms

  13. What is the name of a polymer formed from propene?

    • Polypropyne
    • Poly(propanal)
    • Poly(propene)
    • Polypropanol

  14. What is the repeat unit of poly(propene)?

    • -CH2-CH(CH3)-
    • -CH2-CH2-CH3-
    • -CH=CH-CH3-
    • -C(CH3)2-CH2-

  15. Which type of polymer can be repeatedly melted and remoulded during mechanical recycling?

    • Thermoplastics
    • Elastomers
    • Cross-linked polymers
    • Thermosets

  16. Why are most poly(alkenes) non-biodegradable in landfill sites?

    • Weak hydrogen bonds
    • Inert non-polar bonds
    • Unstable ester linkages
    • High water solubility

  17. What breaks down a biodegradable polymer in the environment?

    • UV radiation
    • Mechanical stress
    • Microorganisms
    • High heat

  18. Which stage in a polymer's life cycle typically uses the most energy?

    • Monomer production
    • Landfill disposal
    • Product distribution
    • Mechanical recycling

  19. Which compound is the monomer for the repeat unit -CH2-CHCN-?

    • Propanoic acid, CH3CH2COOH
    • Ethanenitrile, CH3CN
    • Propenenitrile, CH2=CHCN
    • Propanenitrile, CH3CH2CN

  20. A 2.80 g sample of poly(ethene) is made of repeat units -CH2-CH2- (Ar: C = 12.0, H = 1.0). How many moles of repeat units does it contain?

    • 0.0500 mol
    • 1.00 mol
    • 0.0100 mol
    • 0.100 mol

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