Essential Chemistry for IGCSE - Organic Chemistry And Petrochemicals (Section 1 - No. 12)
Which of the following statements is correct about fractional distillation?
Smaller molecules condense at lower temperatures.
The process is used to separate substances with similar boiling points.
The fractionating column is hottest at the top.
The process relies on chemical reactions.
Explanation
Smaller molecules have lower boiling points and condense at higher levels in the fractionating column
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