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7.1 Carbon compounds as fuels and feedstock

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Question 15

A laboratory analyses an alkane found in a fuel sample. Each molecule of the alkane contains eight carbon atoms. The general formula of the alkanes is CnH2n+2\text{C}_n\text{H}_{2n+2}Cn​H2n+2​.

Which formula should the laboratory record for the alkane?

[1]
A

C8H17\text{C}_8\text{H}_{17}C8​H17​

B

C8H16\text{C}_8\text{H}_{16}C8​H16​

C

C8H20\text{C}_8\text{H}_{20}C8​H20​

D

C8H18\text{C}_8\text{H}_{18}C8​H18​

Markscheme

7.1 Carbon compounds as fuels and feedstock Questions

  1. GCSE
  2. /Chemistry
  3. /7.1 Carbon compounds as fuels and feedstock

91 exam-style questions on AQA GCSE Chemistry 7.1 Carbon compounds as fuels and feedstock, covering 7.1.1 Crude oil, hydrocarbons and alkanes, 7.1.2 Fractional distillation and petrochemicals, 7.1.3 Properties of hydrocarbons, and 7.1.4 Cracking and alkenes. Each one has a worked solution and a mark scheme showing where the marks go.

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