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EEJ MAIN Chemistry QUESTION #7197
Question 1
The separation of a mixture of two liquids having boiling points $350 \text{ K}$ and $355 \text{ K}$ can be best achieved by which technique?
  • Simple Distillation
  • Fractional Distillation✔️
  • Steam Distillation
  • Distillation under reduced pressure
Correct Answer Explanation

Fractional Distillation is used when the difference in boiling points between two miscible liquids is small (usually less than $25 \text{ K}$) [cite: 3, 59].

  • Since the difference here is only $5 \text{ K}$, a fractionating column is required to provide repeated condensation and vaporization cycles[cite: 4].