Welcome to the Quiz!
This quiz contains 15 questions from a mix of 1 subtopics.
Model answer
Draw the monomer present in the section of addition polymer shown above.
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Model answer
Draw the repeat unit of the addition polymer made using the propene monomer shown above.
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What type of polymers are formed when alkenes polymerise?
thermosetting polymers
condensation polymers
copolymers
addition polymers
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What happens to the double bond in an alkene during polymerisation?
it becomes a triple bond
it opens up, allowing monomers to join
it remains unchanged
it breaks completely
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What is the smallest section of a polymer chain that repeats over and over called?
plasticiser
backbone
repeating unit
monomer
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What is the correct name for the addition polymer made from propene?
polymer(propane)
poly(propene)
polymer(propene)
poly(propane)
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Longer, straight polyalkenes are generally ________ compared to shorter or branched polyalkenes.
more flexible
more reactive
harder and more rigid
less stable
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What are plasticisers?
large molecules that increase the flexibility of polymers
large molecules that increase the rigidity of polymers
small molecules that increase the rigidity of polymers
small molecules that increase the flexibility of polymers
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How do plasticisers increase the flexibility of polymers?
by strengthening intermolecular forces between polymer chains
by pushing polymer chains apart, weakening intermolecular forces
by breaking the polymer chains into smaller fragments
by forming covalent bonds with polymer chains
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What makes addition polymers unreactive under normal conditions?
the strong non-polar C-C and C-H bonds
the strong intermolecular forces between polymer chains
the presence of polar functional groups
the high molecular weight of the polymer chains
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Why are most plastics non-biodegradable?
due to their unreactive structure
due to their reactive structure
due to their polar nature
due to the presence of plasticisers
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Which of the following is NOT a viable approach to dealing with plastic waste?
incineration
recycling
landfilling
using biodegradable polymers
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What is a potential issue with burning plastic waste?
it increases the flexibility of the plastic
it may produce toxic emissions
it produces no heat for electricity generation
it makes the plastic more reactive
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The individual alkene molecules that join together to form a polymer are called .
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What is the term for the process of joining many monomers together to form a polymer?
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