The vapour of which liquid is present at the upper and lower side of the distillation column?
- AThe component with the lower boiling point is at the top,and the component with the higher boiling point is at the bottom.
- BThe component with the higher boiling point is at the top,and the component with the lower boiling point is at the bottom.
- CBoth components are present in equal amounts at both ends.
- DOnly the solvent vapour is present at both ends.
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