Compare5 marksStandard
Poly(ethene) and poly(chloroethene) (PVC) are addition polymers.
Compare the monomers and repeat units of these two polymers, and discuss the difficulties associated with their disposal.
CAIE A Level Chemistry 9701 · Polymerisation
Polymerisation: compare question
How this question is marked
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
More Polymerisation questions
- 5 marks · A polyester is formed by the reaction between ethane-1,2-diol and hexanedioic acid. Describe the formation of this polyester. In your…
- 2 marks · A section of an addition polymer chain is shown below. -CH2-CHCl-CH2-CHCl-CH2-CHCl- State the monomer from which this polymer is made, and…
- 4 marks · Poly(alkenes) such as poly(ethene) are widely used but persist in the environment for many years. In contrast, polyesters and polyamides…
- 4 marks · A polymer is formed by the condensation polymerisation of the aminocarboxylic acid NH2CH2CH2CH2COOH. Suggest, in words, the structure of…
- 5 marks · A student investigates two polymers, X and Y. Polymer X is produced from ethene, CH2=CH2, under high pressure. Polymer Y is formed from…
- 4 marks · A polymer is produced by heating a mixture of ethane-1,2-diol and hexanedioic acid in the presence of a catalyst. Explain the formation of…
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.