Biology
Grade-7
Easy

Question

Impure water is first heated to its boiling point in order to turn it to steam in _______________________.

  1. Distillation
  2. Potassium permanganate
  3. Sewage
  4. Carbon

hintHint:

The separation process among the given options.

The correct answer is: Distillation


    • Distillation is the process of separation of liquids from a mixture
    • The liquids are separated based on the difference in boiling points between them
    • During the process:
    1. Mixture is boiled
    2. The liquid with lower boiling point evaporates first
    3. The vapor is cooled and collected as liquid through condensation
    • The distillation is a common method used during desalination and refining of oil mixture 

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