Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Synthetic Polymers
107 practice questions
Topics covered
Practice questions
21–30 of 107
Question 21
3 marks · Easy
Answer and see the solution →Poly(propene) is a polymer formed from propene.
(a)[1 mark]Draw the displayed formula of a propene molecule.
(b)[1 mark]Write the structural formula for the repeat unit in poly(propene).
(c)[1 mark]Name one use of poly(propene).
Question 22
3 marks · Easy
Answer and see the solution →The table shows the formulae of some monomers and their corresponding polymers.
Polymer Monomer formula poly(ethene) CH2=CH2 poly(chloroethene) CH2=CHCl poly(propene) CH3CH=CH2 (a)[1 mark]Which polymer in the table is made from a monomer containing a chlorine atom?
(b)[1 mark]Give the name of the monomer used to make poly(ethene).
(c)[1 mark]Write the structural formula of poly(propene)'s repeat unit.
Question 23
1 mark · Easy
Answer and see the solution →Write the displayed formula of the monomer used to make poly(ethene).
Question 24
3 marks · Easy
Answer and see the solution →Tetrafluoroethene is an alkene that can be polymerised to form poly(tetrafluoroethene).
(a)[1 mark]Give the molecular formula of tetrafluoroethene.
(b)[1 mark]Write the repeat unit of poly(tetrafluoroethene) as a formula.
(c)[1 mark]State one use of poly(tetrafluoroethene).
Question 25
2 marks · Easy
Answer and see the solution →A polymer is formed by the addition polymerisation of chloroethene. Each repeat unit in the polymer has the formula .
Calculate the total number of chlorine atoms in the polymer when it consists of 200 repeat units.
Question 26
2 marks · Easy
Answer and see the solution →The repeat unit of a polymer is shown below:
Explain how you can deduce the structure of the monomer used to form this polymer.
Question 27
2 marks · Easy
Answer and see the solution →A sample of poly(chloroethene) (PVC) contains 600 repeat units. Each repeat unit has the formula .
Calculate the total number of chlorine atoms present in the polymer sample.
Question 28
2 marks · Normal
Answer and see the solution →Poly(butene) is a polymer formed by the addition polymerisation of butene (CH2=CHCH2CH3).
State:
(a)[1 mark]the name of the monomer used to make poly(butene)
(b)[1 mark]the type of bond in butene that allows it to undergo addition polymerisation
Question 29
4 marks · Normal
Answer and see the solution →A new polymer, poly(2-chloropropene), is formed from the alkene 2-chloropropene (CH2=CClCH3).
(a)[1 mark]Draw the displayed formula of the monomer, 2-chloropropene.
(b)[2 marks]Show the displayed formula of the repeat unit of poly(2-chloropropene). Indicate continuation bonds at both ends.
(c)[1 mark]State the type of polymerisation that occurs.
Question 30
3 marks · Normal
Answer and see the solution →A sample of poly(ethene) contains 250 repeat units. Each repeat unit has the formula -CH2CH2-.
Calculate the total number of carbon atoms and hydrogen atoms in the polymer chain.