1.1. This question is about polymers.

Figure 1 shows the reaction used to make the polymer poly(ethene).

Figure 1

Complete Figure 1 to show the structure of poly(ethene).

1.2. Name this reaction.

1.3. Poly(ethene) is a solid at room temperature.

Suggest why in terms of its structure and bonding.

1.4. There are two types of poly(ethene). These are shown in Figure 2.

                                      Type A                                                                                                Type B

Figure 2

Identify which type of poly(ethene) has the highest density.

Give a reason for your answer.