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7.1 Carbon compounds as fuels and feedstock

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Question 29

The table shows the molecular formulae of three compounds.

CompoundMolecular formula
JC7H16\text{C}_7\text{H}_{16}C7​H16​
KC7H14\text{C}_7\text{H}_{14}C7​H14​
LC2H5Cl\text{C}_2\text{H}_5\text{Cl}C2​H5​Cl
a.

Use the definition of a hydrocarbon to classify each compound as a hydrocarbon or not a hydrocarbon. Support each classification with evidence from its formula.

[3]
b.

Explain whether each hydrocarbon identified in part (a) is an alkane.

[2]
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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