This question is about polymers - Edexcel - GCSE Chemistry - Question 10 - 2021 - Paper 1
Question 10
This question is about polymers.
(a) (i) State a problem with recycling polymers.
(ii) Describe a problem associated with the disposal of polymers.
(b) Poly(chlor... show full transcript
Worked Solution & Example Answer:This question is about polymers - Edexcel - GCSE Chemistry - Question 10 - 2021 - Paper 1
Step 1
State a problem with recycling polymers.
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Answer
One problem with recycling polymers is that they often need to be sorted into different types before recycling. This sorting is a time-consuming process and can be labor-intensive, particularly when done by hand.
Step 2
Describe a problem associated with the disposal of polymers.
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Polymers typically persist in landfill for very long periods, degrading very slowly. This means that they can take up space in landfills and cause environmental harm by releasing harmful substances as they decompose.
Step 3
On Figure 20, draw a circle around the functional group in this molecule.
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Answer
Circle around the C=C bond or the C-Cl bond.
Step 4
Draw a section of a poly(chloroethene) molecule containing three repeating units, showing all bonds.
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The section should display a continuous chain of 6 carbon atoms, with single bonds between the carbon atoms, showing the correct connectivity:
H H H H H
| | | | |
H--C--C--C--C--C--C--H
| | | | |
Cl H H H H
This representation illustrates three repeating units of poly(chloroethene).
Step 5
What is the reaction type for the formation of poly(chloroethene)?
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The polymerization of chloroethene involves an addition reaction.
Step 6
Calculate the relative formula mass of poly(chloroethene).
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The relative formula mass can be calculated as follows:
