Which method of distillation occurs when some materials are easily separated because their boiling points are far enough apart that the lower boiler of the material is easily separated from the high boiler?

Question

A) Binary distillation
B) Azeotropic distillation
C) Extractive distillation
D) Reactive distillation

Answer 1

Answer: A
Explanation: A) Correct. Binary distillation occurs when some materials are easily separated because their boiling points are far enough apart that the lower boiler of the material is easily separated from the high boiler.
B) Incorrect. Azeotropic distillation occurs when materials with similar volatility points are more difficult to separate and require that the boiling point of one of the materials be changed.
C) Incorrect. Extractive distillation is a method of separating materials that have close boiling (or volatility) points is to add a solvent with a high boiling point to form a miscible mixture with the high boiler in the material.
D) Incorrect. In reactive distillation, the reaction process and the distillation process are combined in the same unit.