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6.2 Organic chemistry

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Question 24

An addition polymer molecule has 720 carbon atoms in its main chain. It was made by joining but-1-ene molecules, CH2=CHCH2CH3\mathrm{CH_{2}{=}CHCH_{2}CH_{3}}CH2​=CHCH2​CH3​.

How many but-1-ene molecules joined to make this polymer molecule?

[1]
A

360

B

720

C

1440

D

180

Markscheme

6.2 Organic chemistry Questions

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

131 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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