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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 3

Nonane (C9H20\text{C}_9\text{H}_{20}C9​H20​) is a hydrocarbon component of some diesel 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​+​→​+​
[2]
b.

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

[2]
c.

A laboratory technician needs 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 results for each compound.

[3]
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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