SubjectCover

Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section

Addition polymerisation

19 practice questions

Start practising (19 questions)

Practice questions

11–19 of 19

  1. Question 11

    3 marks · Normal

    Explain why the preparation of addition polymers such as poly(ethene) does not produce any waste products. State one advantage and one disadvantage of this.

    Answer and see the solution →

  2. Question 12

    4 marks · Normal

    The table below shows information about three addition polymers and the number of carbon atoms in their repeat units.

    PolymerMonomerNumber of C atoms in repeat unit
    Poly(ethene)ethene2
    Poly(propene)propene3
    Poly(chloroethene)chloroethene2
    (a)

    Which polymer in the table has a repeat unit containing the highest number of carbon atoms? Explain your answer.

    [1 mark]
    (b)

    Draw the repeat unit for poly(propene).

    [2 marks]
    (c)

    Name the monomer used to make poly(chloroethene).

    [1 mark]
    Answer and see the solution →

  3. Question 13

    1 mark · Normal

    Which statement about the preparation of poly(ethene) by addition polymerisation is correct?

    1. A.The monomers react and produce water as a by-product.
    2. B.The reaction requires a catalyst.
    3. C.The polymerisation uses up all atoms from the ethene monomers.
    4. D.It forms poly(ethene) and carbon dioxide.
    Answer and check →

  4. Question 14

    2 marks · Normal

    Give the name of the addition polymer formed from tetrafluoroethene, and draw its repeat unit using displayed formulae.

    Answer and see the solution →

  5. Question 15

    4 marks · Normal

    Addition polymers such as poly(chloroethene) are made from small molecules called monomers.

    (a)

    Name the type of reaction used to make poly(chloroethene).

    [1 mark]
    (b)

    Describe the role of an initiator in the preparation of addition polymers.

    [1 mark]
    (c)

    Draw the structure of chloroethene, the monomer used to make poly(chloroethene).

    [1 mark]
    (d)

    State one use of poly(chloroethene).

    [1 mark]
    Answer and see the solution →

  6. Question 16

    3 marks · Normal

    A monomer with the formula (chloroethene) undergoes addition polymerisation to form poly(chloroethene).

    Calculate the relative molecular mass (Mr) of one repeat unit of poly(chloroethene).

    Show your working, including the atomic masses you use, and draw the displayed formula of the repeat unit.

    (a)

    Calculate the relative molecular mass (Mr) of one repeat unit of poly(chloroethene). Use these atomic masses: C = 12, H = 1, Cl = 35.5.

    [2 marks]
    (b)

    Draw the displayed formula of one repeat unit of poly(chloroethene).

    [1 mark]
    Answer and see the solution →

  7. Question 17

    2 marks · Hard

    The structure below shows part of a polymer chain.

    State the name of the monomer used to make this polymer. Draw the displayed formula of the repeat unit for this polymer.

    Answer and see the solution →

  8. Question 18

    5 marks · Hard

    Describe how poly(ethene) is prepared in the chemical industry.

    (a)

    State the name and formula of the monomer used to make poly(ethene).

    [1 mark]
    (b)

    Write the equation for the polymerisation reaction, using displayed formulae for both the monomer and the polymer's repeat unit, and including 'n' notation.

    [2 marks]
    (c)

    State the type of reaction used to produce poly(ethene).

    [1 mark]
    (d)

    Describe the essential conditions needed for this reaction.

    [1 mark]
    Answer and see the solution →

  9. Question 19

    2 marks · Hard

    A student is given the displayed formula for the repeat unit of a polymer:

    Deduce the structural formula of the monomer, and write its name.

    Answer and see the solution →