Many molecules of a fluorinated alkene monomer combine to form substance Z.
Figure 2 shows a section of a molecule of substance Z.

What type of substance is Z?
a composite
a fullerene
a polymer
an alloy
Practise Edexcel GCSE Chemistry Polymers with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.