1.1. The homologous series of alkenes can be converted into polymers.

i) Draw the displayed formulae of the first two members of the homologous series of alkenes.

 (2)

 ii) Use your answer to part (ii) to explain why these compounds are in the same homologous series.

 (3)

1.2. Separate: Chemistry Only

The diagram shows a range of organic compounds with the general formula C₄H₈. 

 Identify the compounds that cannot form polymers. Explain your answer.

1.3. Compound D can be polymerised to form the polymer poly(2-methylpropene). 

Complete the equation for this polymerisation reaction. 

1.4. The diagram shows the repeat unit of the polymer formed by compound E.

 i) Give the empirical formula of the polymer.

 (1)

 ii) Identify another compound from part (b) that can form this polymer.

 (1)