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5 marksSolid Waste

CAPE Chemistry Unit 2 · 2006 · Paper 2 · Question 8(d)

Discuss the advantages and disadvantages of disposing of PVC material via incineration.

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  1. 8(a)Give ONE use for EACH of PVC and PET and suggest why these polymers do not respond to natural degradative processes.[4 marks]
  2. 8(b)(i)Suggest the meaning of the term 'depolymerization'.[1 mark]
  3. 8(b)(ii)State TWO chemicals that could be used in the depolymerization of PET and explain the chemical process occurring.[5 marks]
  4. 8(c)(i)What would be a suitable solvent for this process?[1 mark]
  5. 8(c)(ii)Suggest a reason for the use of fine chips.[1 mark]
  6. 8(c)(iii)Give TWO safety precautions that should be enforced during this recycling process.[2 marks]
  7. 8(c)(iv)Suggest a use or property of any clothing produced from these recycled fibres.[1 mark]

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