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Addition Polymerisation (chemistry Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Addition Polymerisation (chemistry Only)' from the broader topic Organic Chemistry. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Which statement about recycling of addition polymers by mechanical recycling is true?
Why do some synthetic addition polymers require stabilisers or UV absorbers in outdoor applications?
Which property is most likely to increase if the average polymer chain length (molecular mass) increases?
Which safety precaution is most important when making addition polymers in the lab from volatile monomers?
Why does high-density poly(ethene) (HDPE) have higher tensile strength than low-density poly(ethene) (LDPE)?
Which property change is expected when plasticiser is added to a rigid poly(vinyl chloride) sample?
Which functional group in a monomer is essential for addition polymerisation?
Why do cross-linked addition polymers (thermosets) not melt on heating?
Which addition polymer contains chlorine atoms on every repeat unit and is used for pipes and window frames?
What is a main advantage of producing polymers from renewable monomers (e.g., plant-derived ethene) rather than fossil fuels?
A company wants a clear, hard addition polymer for car light covers. Which polymer is most suitable?