Addition polymers and polymer disposal

Addition polymers and polymer disposal Quiz

Spec 6C · Edexcel A-Level Chemistry: Quiz

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5 questions, one answer each

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  1. 1. Which is the monomer for poly(tetrafluoroethene), PTFE, whose repeat unit is –CF₂–CF₂–?

    • A. CF₃CF₃
    • B. CF₃CF=CF₂
    • C. CF₂=CF₂
    • D. CH₂=CF₂

  2. 2. Why is it important to sort waste polymers before recycling?

    • A. Different polymers have different properties and must be reprocessed separately
    • B. Polymers can only be burned if sorted
    • C. Sorting makes them biodegradable
    • D. Sorting removes all the carbon

  3. 3. Which equation shows the neutralisation of the toxic gas from burning PVC?

    • A. CO₂ + H₂O → H₂CO₃
    • B. 2NO + 2CO → N₂ + 2CO₂
    • C. C₂H₃Cl + O₂ → CO₂
    • D. Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O

  4. 4. What is the relative molecular mass of a poly(ethene) chain containing 1500 repeat units? (Ar: C = 12.0, H = 1.0)

    • A. 28 000
    • B. 42 000
    • C. 21 000
    • D. 84 000

  5. 5. Which is the best reason why chemists study the life cycle of a polymer product?

    • A. To make the polymer biodegradable in every case
    • B. To prove that recycling is always best
    • C. To compare energy and resource use at every stage and so choose the most sustainable option
    • D. To avoid using any crude oil

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