1.1. This question is about the processes and reactions which occur in the petrochemical industry. 

Figure 1 shows some of these processes and reactions. 

Figure 1

Describe how crude oil is separated into fractions.

1.2. Describe the conditions required in reactor 1. 

1.3. Ethene is used to produce the polymer poly(ethene) in reactor 2.

Ethene is a gas at room temperature but poly(ethene) is a solid.

Explain the difference in physical state.

1.4. Compare the properties of gasoline and fuel oil.