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WAEC Chemistry 2013 Objective — Question 38

Question 38 of 50 from the West African Examinations Council (WAEC) Chemistry 2013 Objective paper, with the correct answer and a full explanation.

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The separation of petroleum fractions depends on the differences in their

  • A. melting points
  • B. molar masses
  • C. solubilities
  • D. boiling pointsCorrect

Explanation

The physical property harnessed in the separation of petroleum into its fractions is boiling points. The various fractions distill at different temperature, with the low-boiling fractions coming first.

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