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6.2 Organic chemistry

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Question 18
F

One molecule of poly(ethene) is made from 5000 molecules of ethene, C2H4\mathrm{C_{2}H_{4}}C2​H4​.

Relative atomic mass (ArA_rAr​): C = 12.0 H = 1.0

What is the relative formula mass of this poly(ethene) molecule?

[1]
A

70 000

B

130 000

C

140 000

D

150 000

Markscheme

6.2 Organic chemistry Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Organic chemistry

63 exam-style questions on OCR GCSE Chemistry 6.2 Organic chemistry, covering 6.2.1 Crude oil and fractional distillation, 6.2.2 Cracking and dependence on hydrocarbons, 6.2.3 Functional groups and homologous series, 6.2.4 Reactions of alkanes, alkenes and alcohols, 6.2.5 Addition polymerisation and repeat units, 6.2.6 Naturally occurring polymers, 6.2.7 Chemical cells and fuel cells, and 6.2.8 Condensation polymerisation and how to make one. Each one has a worked solution and a mark scheme showing where the marks go.

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