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Cambridge IGCSE Combined Science practice

What is the primary purpose of fractional distillation in petroleum processing?

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Fuels

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What is the primary purpose of fractional distillation in petroleum processing?.

  1. A.To purify water
  2. B.To separate crude oil into useful fractions
  3. C.To convert oil into gas
  4. D.To remove impurities from oil

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Fractional Distillation of Crude Oil

Crude oil is heated in a distillation column, where it vaporizes and rises. Different hydrocarbons condense at different heights based on their boiling points, allowing for the collection of various fractions.

  1. a

    Explain the process of fractional distillation and its significance in petroleum refining.

    Aim for approximately 4 distinct marking points.

    [4]