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9.1 Fuels

9.1 Fuels

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Question 78

Crude oil is a finite resource consisting predominantly of alkanes, which can be separated into useful fractions by fractional distillation. Which of the following mixtures contains only formulas of compounds that would typically be found in the liquid petrol (gasoline) fraction, containing hydrocarbons with 5 to 12 carbon atoms, obtained directly from the fractional distillation of crude oil?

A

C6H12\text{C}_6\text{H}_{12}C6​H12​, C8H16\text{C}_8\text{H}_{16}C8​H16​, C10H20\text{C}_{10}\text{H}_{20}C10​H20​

B

C2H6\text{C}_2\text{H}_6C2​H6​, C6H14\text{C}_6\text{H}_{14}C6​H14​, C8H18\text{C}_8\text{H}_{18}C8​H18​

C

C6H14\text{C}_6\text{H}_{14}C6​H14​, C8H18\text{C}_8\text{H}_{18}C8​H18​, C10H22\text{C}_{10}\text{H}_{22}C10​H22​

D

C5H12\text{C}_5\text{H}_{12}C5​H12​, C8H18\text{C}_8\text{H}_{18}C8​H18​, C15H32\text{C}_{15}\text{H}_{32}C15​H32​

Markscheme

9.1 Fuels Questions

  1. GCSE
  2. /Chemistry
  3. /9.1 Fuels

105 exam-style questions on Edexcel GCSE Chemistry 9.1 Fuels, covering 9.1.1 Hydrocarbons and crude oil, 9.1.2 Fractional distillation of crude oil and its fractions, 9.1.3 The alkanes as a homologous series, 9.1.4 Complete and incomplete combustion, 9.1.5 Pollutants from burning fuels, 9.1.6 Hydrogen as a fuel and non-renewable fossil fuels, and 9.1.7 Cracking of larger alkanes. Each one has a worked solution and a mark scheme showing where the marks go.

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