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10.3 Polymers

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Question 12
H

A polyester has the repeating unit [−O−CH2CH2CH2−O−CO−CH2−CO−]n\mathrm{[-O-CH_{2}CH_{2}CH_{2}-O-CO-CH_{2}-CO-]_{n}}[−O−CH2​CH2​CH2​−O−CO−CH2​−CO−]n​.

Which pair of monomers forms this polyester?

[1]
A

HOCH2CH2OH\mathrm{HOCH_{2}CH_{2}OH}HOCH2​CH2​OH and HOOCCH2CH2COOH\mathrm{HOOCCH_{2}CH_{2}COOH}HOOCCH2​CH2​COOH

B

HOCH2CH2CH2COOH\mathrm{HOCH_{2}CH_{2}CH_{2}COOH}HOCH2​CH2​CH2​COOH only

C

HOCH2CH2CH2OH\mathrm{HOCH_{2}CH_{2}CH_{2}OH}HOCH2​CH2​CH2​OH and HOOCCH2CH2COOH\mathrm{HOOCCH_{2}CH_{2}COOH}HOOCCH2​CH2​COOH

D

HOCH2CH2CH2OH\mathrm{HOCH_{2}CH_{2}CH_{2}OH}HOCH2​CH2​CH2​OH and HOOCCH2COOH\mathrm{HOOCCH_{2}COOH}HOOCCH2​COOH

Markscheme

10.3 Polymers Questions

  1. GCSE
  2. /Chemistry
  3. /10.3 Polymers

37 exam-style questions on Edexcel GCSE Chemistry 10.3 Polymers, covering 10.3.1 Addition polymerisation of alkenes, 10.3.2 Uses and properties of polymers, 10.3.3 Condensation polymers and polyesters, 10.3.4 Problems with polymers and recycling, and 10.3.5 Natural polymers: DNA, starch and proteins. Each one has a worked solution and a mark scheme showing where the marks go.

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