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Doctors Medicines MCQs Q&A

  1. Differential extraction
  2. Fractional distillation
  3. Chromatography
  4. Leaching
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Option 2 : Fractional distillation

Crude oil is separated into its different constituents using fractional distillation. This method is used because different substances in crude oil have different boiling points. The crude oil is evaporated and its vapours are allowed to condense at different temperatures in the fractioning column.

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