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6.2 Organic chemistry

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Question 2

A laboratory carries out quality-control tests on four hydrocarbons. Each hydrocarbon is shaken with bromine water.

Which compound leaves the bromine water orange?

[1]
A

CH2=CHCH2CH2CH2CH3\mathrm{CH_{2}{=}CHCH_{2}CH_{2}CH_{2}CH_{3}}CH2​=CHCH2​CH2​CH2​CH3​

B

CH3CH2CH2CH2CH2CH3\mathrm{CH_{3}CH_{2}CH_{2}CH_{2}CH_{2}CH_{3}}CH3​CH2​CH2​CH2​CH2​CH3​

C

CH3CH=CHCH2CH2CH3\mathrm{CH_{3}CH{=}CHCH_{2}CH_{2}CH_{3}}CH3​CH=CHCH2​CH2​CH3​

D

CH3CH2CH=CHCH2CH3\mathrm{CH_{3}CH_{2}CH{=}CHCH_{2}CH_{3}}CH3​CH2​CH=CHCH2​CH3​

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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