Chemistry 5070 · O Level · Fuels

Fuels — practice question

Two fractions obtained from the separation of petroleum are the lubricating oil fraction and the kerosene / paraffin fraction. Which statement is correct?

  • AThe lubricating oil fraction is more viscous than the kerosene / paraffin fraction.
  • BThe lubricating oil fraction is more volatile than the kerosene / paraffin fraction.
  • CThe lubricating oil fraction has lower boiling points than the kerosene / paraffin fraction.
  • DMolecules in the lubricating oil fraction have smaller chain lengths than molecules in the kerosene / paraffin fraction.

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