The diagram shows the general equation for addition polymerisation, where a polymer is formed from alkenes.

The equation shows the formation of polyethene through addition polymerisation.

The equation shows the formation of polypropene through addition polymerisation.

The equation shows the formation of polychloroethene (PVC) through addition polymerisation.

The equation shows the formation of polytetrafluoroethene through addition polymerisation.

1

Is polychloroethene stronger or weaker than polyethene?

2

W, X, Y or Z cannot be representative of which of the following: Cl, F, O₂, CH₃?

3

Which of the following is not an alternative name for polypropene: polypyrene, polypropylene, polyprene?

4

Draw polypropene with 3 repeating units.

5

What properties of PVC make it suitable for use in gas and water pipes?