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6.2 Organic chemistry

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Question 21
F

Propene, CH2=CHCH3\mathrm{CH_{2}{=}CHCH_{3}}CH2​=CHCH3​, forms the addition polymer poly(propene).

Statement 1: Poly(propene) has the same empirical formula as propene.

Statement 2: Poly(propene) molecules contain C=C\mathrm{C{=}C}C=C double bonds.

Statement 3: No other product is formed when propene molecules join together.

Statement 4: A poly(propene) molecule made from 1000 propene molecules has a relative formula mass 1000 times that of propene.

Which statements are correct?

[1]
A

1 and 3 only

B

2 and 4 only

C

2, 3 and 4 only

D

1, 3 and 4 only

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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