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7.1 Carbon compounds as fuels and feedstock

7.1 Carbon compounds as fuels and feedstock

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Question 2

Nonane (C9H20\text{C}_9\text{H}_{20}C9​H20​) is a liquid hydrocarbon commonly found in kerosene-based aviation fuels.

a.

Complete and balance the chemical equation for the complete combustion of nonane:

C9H20+‾→‾+‾ \text{C}_9\text{H}_{20} + \underline{\qquad\qquad} \rightarrow \underline{\qquad\qquad} + \underline{\qquad\qquad} C9​H20​+​→​+​
[3]
b.

As the chain length of a hydrocarbon molecule increases, its boiling point increases. Explain this trend in terms of intermolecular forces.

[2]
c.

A chemical technician wants to distinguish a sample of nonane (C9H20\text{C}_9\text{H}_{20}C9​H20​) from nonene (C9H18\text{C}_9\text{H}_{18}C9​H18​). Describe a chemical test and the expected observation for each compound to help the technician identify them.

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Markscheme

7.1 Carbon compounds as fuels and feedstock Questions

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

12 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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