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Distillation: Quiz

  
  
  
  
  

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Question 1: In ________, the source materials, vapors, and distillate are kept at a constant composition by carefully replenishing the source material and removing fractions from both vapor and liquid in the system.
Fractionating columnFractional distillationRefluxContinuous distillation

Question 2: With the emergence of ________ as a discipline at the end of the 19th century, scientific rather than empirical methods could be applied.
Chemical engineeringMaterials scienceEnvironmental Engineering ScienceCivil engineering

Question 3: The essential oils are often used in perfumery and aromatherapy while the watery distillates have many applications in ________, food processing and skin care.
AromatherapyPseudoscienceGrapefruitDistillation

Question 4: Distillation of fermented solutions has been used since ancient times to produce ________ with a higher alcohol content.
Distilled beverageAlcoholic beverageVodkaEthanol

Question 5: The destructive distillation of wood to give ________ is the root of its common name - wood alcohol.
Propan-1-olAcetic acidMethanolIsopropyl alcohol

Question 6: The idealized model is accurate in the case of chemically similar liquids, such as ________ and toluene.
AlkanePyridineEthyleneBenzene

Question 7: What does the following picture show?

  Short path vacuum distillation apparatus with vertical condenser (cold finger), to minimize the distillation path; 1: Still pot with stirrer bar/anti-bumping granules 2: Cold finger - bent to direct condensate 3: Cooling water out 4: cooling water in 5: Vacuum/gas inlet 6: Distillate flask/distillate.
  A batch still showing the separation of A and B.
  A retort.
  Distillation

Question 8: What does the following picture show?

  A retort.
  Typical industrial distillation towers
  Distillation apparatus of Zosimus, from Marcelin Berthelot, Collection des anciens alchimistes grecs (3 vol., Paris, 1887-1888).
  A batch still showing the separation of A and B.

Question 9: They produced distillation processes to isolate and purify chemical substances for industrial purposes such as isolating natural esters (perfumes) and producing pure ________.
EthanolAlkaneAldehydeAlcohol

Question 10: Such interactions can result in a constant-boiling ________ which behaves as if it were a pure compound (i.e., boils at a single temperature instead of a range).
Liquid-liquid extractionAzeotropeFlocculationDistillation
















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