Question 1

Polymerisation of ethene gives poly(ethene).

How does the bonding between carbon atoms in poly(ethene) compare with that in ethene?

  A  

longer and stronger in poly(ethene)

  B  

longer and weaker in poly(ethene)

  C  

shorter and stronger in poly(ethene)

  D  

shorter and weaker in poly(ethene)

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Question 2

A section showing two repeat units of an addition polymer is shown. 

What is the identity of the monomer that produced this polymer?

  A  

2-chloro-3-methylbutane

  B  

2-chloro-3-methylbut-2-ene

  C  

2-chloropent-2-ene

  D  

2,4-dichloro-3,3,4,5-tetramethylhexane

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Question 3

This structure shows a section of a polymer chain formed from the random polymerisation of two different monomers.

Which pair of monomers could produce this polymer?

  A  

CH2=CHF and CH2=CHCF3

  B  

CH2=CH2 and CHF=CHCF3

  C  

CH2=CH2 and CH2=CHCF3

  D  

CH2=CHF and CHCF3=CHF

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