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JAMB Chemistry 2016 past questions and answers

1 questions. Try each one, then open the answer to check yourself and read the explanation.

Question 21

Petroleum and Coal

Which of the following CANNOT be obtained by fractional distillation of petroleum?

  1. A.Ether
  2. B.Methane
  3. C.Butane
  4. D.Hydrogen
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Answer: D (Hydrogen)

Explanation

Fractional distillation separates the hydrocarbons already in crude oil (methane, butane, ...); free hydrogen is not one of its fractions.

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