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Distillation

Chemistry • Separation of Mixtures • Original Scenario-Based • 1 questions

Distillation Original Scenario-Based Download PDF

Chemistry · Matter · Chemistry · Separation of Mixtures

1 Chemistry practice questions on Distillation. Questions built around original scenarios.

Questions

  1. 1.

    Aboard an interstellar research vessel, a botanist discovers an alien nectar that is a homogeneous liquid solution of volatile bio-ethanol and water. To harvest pure bio-ethanol without thermally degrading the remaining heat-sensitive floral enzymes, the engineer must separate these two miscible liquids using their physical properties. Which laboratory method should the engineer employ, and what fundamental property difference enables this separation?

    • A) Fractional distillation, which exploits the distinct boiling points of the miscible liquids.
    • B) Filtration, which exploits the difference in molecular particle sizes across a porous membrane.
    • C) Decantation, which exploits the differences in density between two immiscible liquid layers.
    • D) Centrifugation, which exploits varying sedimentation rates of suspended insoluble solids.