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

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What type of bonds are formed between the carbon atoms on neighbouring repeating units?

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2

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What polymer is formed from a large number of the monomer shown?

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3

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Polyethene can be melted and moulded into any shape. It is an example of what type of plastic?

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4

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An incorrect equation for the formation of polyethene is shown. What is the mistake in the equation?

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5

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Complete the sentence: polypropene can be drawn out into strong ..., such as nylon.

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6

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

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7

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Why is polytetrafluoroethene used as a coating for cooking pans?

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8

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What is the value of x in the equation shown?

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