The process by which a sample is heated to the boiling point of the solvent and volatile analytes are concentrated in the vapour phase, condensed and collected is called what?

• A. Distillation
• B. Evaporation
• C. Liquid-Liquid Extraction
• D. Oven Drying

Answer: (A)

Distillation relies on differences in boiling points to separate components. When you heat the sample to the solvent’s boiling point, the solvent vaporizes and, along with it, the volatile analytes that co‑vaporize. This vapor is then cooled and condensed back into a liquid and collected as the distillate. By capturing the condensate, you concentrate the volatile components in the vapor phase and recover them separately from non-volatile material. This differs from evaporation, which simply removes solvent without collecting a condensate; liquid–liquid extraction uses a partitioning between two immiscible liquids; and oven drying just removes moisture without forming or collecting a condensate.