Lesson 4.7.1.1

4.7.1.1 Crude oil, hydrocarbons and alkanes Quiz: AQA Chemistry, Unit 7

20 questions

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Lesson 4.7.1.1, Crude oil, hydrocarbons and alkanes: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 7: Organic chemistry, written with Revision Ninja.

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The 20 questions

  1. How is crude oil described in the specification?

    • Pure substance
    • Finite resource
    • Infinite resource
    • Synthetic polymer
  2. What ancient material is crude oil mainly formed from?

    • Plankton
    • Insects
    • Bones
    • Wood
  3. What is the general formula of the alkane homologous series?

    • CnH2n-2
    • CnH2n+2
    • CnHn+2
    • CnH2n
  4. Which of these is one of the first four alkanes?

    • Ethene
    • Propene
    • Ethanol
    • Methane
  5. Which elements make up hydrocarbon molecules?

    • Hydrogen and carbon
    • Carbon and nitrogen
    • Hydrogen and oxygen
    • Carbon and oxygen
  6. Which term best describes the composition of crude oil?

    • Mixture
    • Element
    • Solution
    • Pure compound
  7. Which of these is NOT one of the first four alkanes?

    • Ethane
    • Butane
    • Methane
    • Pentane
  8. Most hydrocarbons in crude oil belong to which homologous series?

    • Alkenes
    • Carboxylic acids
    • Alkanes
    • Alcohols
  9. What is the molecular formula of propane?

    • C3H4
    • C3H8
    • C3H6
    • C4H10
  10. What is the formula of the alkane with 6 carbon atoms?

    • C6H10
    • C6H14
    • C6H12
    • C6H16
  11. Which formula belongs to the alkane with 5 carbon atoms?

    • C5H12
    • C5H10
    • C5H14
    • C5H8
  12. What homologous series does the formula C7H16 belong to?

    • Alcohols
    • Carboxylic acids
    • Alkanes
    • Alkenes
  13. What is the name of the alkane drawn as C2H6?

    • Propane
    • Ethyne
    • Ethene
    • Ethane
  14. Which of these molecules is an alkane?

    • C4H6O
    • C4H8
    • C3H6
    • C4H10
  15. Which formula is NOT that of an alkane?

    • CH4
    • C3H8
    • C6H14
    • C4H8
  16. Which homologous series does a hydrocarbon with formula C10H22 belong to?

    • Alkanes
    • Polymers
    • Esters
    • Alkenes
  17. Why is crude oil classified as a finite resource?

    • Soluble in water
    • Never runs out
    • Created in labs
    • Replaced very slowly
  18. What are the only two elements that make up a hydrocarbon molecule?

    • Carbon and oxygen
    • Hydrogen and nitrogen
    • Carbon and sulfur
    • Hydrogen and carbon
  19. An alkane has 20 hydrogen atoms. How many carbon atoms does it contain?

    • 11
    • 18
    • 10
    • 9
  20. By what group do successive members of the alkane series differ?

    • Hydrogen molecule
    • CH3 group
    • Carbon atom
    • CH2 unit

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