PVC and poly(propene) are polymers made by a reaction called addition polymerisation.

1. (a)The diagram in Fig. 10.1 shows the structure of PVC. [Figure 10.1 showing PVC structure] Draw the structure of the monomer used to make PVC.[1]
2. (b)(i)Poly(propene) is a polymer used to make plastic food containers. The diagram in Fig. 10.2 shows the structure of poly(propene). [Figure 10.2 showing poly(propene) structure] Some waste poly(propene) plastic is disposed of by burning. This makes a toxic gas because of incomplete combustion. Name this toxic gas.[1]
3. (b)(ii)State one other environmental challenge caused by the disposal of waste poly(propene) plastic. Explain how this challenge is related to the properties of poly(propene). environmental challenge explanation[2]
4. (c)Name one condensation polymer. Draw the displayed formula of the linkage between the repeat units in this polymer. name linkage[2]

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