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Polymers (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Polymers' from the broader topic Bonding, Structure, And The Properties Of Matter. The test is geared towards the AQA exam board style syllabus.
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What is the repeating unit (monomer fragment) called in a polymer structure?
Which of these is a typical effect of increasing the length (molecular weight) of polymer chains?
Why does adding plasticiser to a polymer like PVC make it more flexible?
How does branching in polymer chains typically affect the material compared with a linear polymer of similar molecular weight?
Which practical property of a polymer is most directly controlled by the strength of intermolecular forces between chains?
Which polymer feature most directly increases elasticity in elastomers like rubber?
Which property tends to increase as polymer chains become more cross-linked?
In polyamide (nylon) chains the repeating link contains an amide bond (–CONH–). This bond is formed during:
Which type of polymerisation joins monomers by opening C=C double bonds to form long chains without producing small molecules?
Which statement about polymer density and packing is correct?
Which functional group is present in monomers that form condensation polymers like polyesters?