The vapour of which liquid is present at the upper and lower side of the distillation column?

  • A
    The component with the lower boiling point is at the top,and the component with the higher boiling point is at the bottom.
  • B
    The component with the higher boiling point is at the top,and the component with the lower boiling point is at the bottom.
  • C
    Both components are present in equal amounts at both ends.
  • D
    Only the solvent vapour is present at both ends.

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