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Distillation Transitional Reasoning Practice

Chemistry · Matter · Chemistry · Separation of Mixtures

1 Chemistry practice questions on Distillation. Questions that build towards applied reasoning.

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Questions

  1. 1.

    A student sets up a simple distillation apparatus to separate a homogeneous liquid mixture of acetone (boiling point 56 °C) and water (boiling point 100 °C). During the experiment, the liquid mixture begins to boil, and the thermometer reading quickly rises and stabilizes near 56 °C while clear liquid drops collect in the receiving flask. Which deduction regarding the state of the mixture and the collected distillate during this constant-temperature stage is scientifically correct?

    • A) The collected distillate is predominantly acetone because components with lower boiling points vaporize first and condense into the receiving flask.
    • B) The distillate in the receiving flask contains pure water because substances with higher boiling points condense more readily inside the distillation flask.
    • C) Both components vaporize and condense in equal proportions because boiling point differences do not affect the rate of phase changes in homogeneous solutions.
    • D) Thermal energy breaks the chemical bonds of acetone molecules, causing only water molecules to remain intact and evaporate into the condenser.

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