Chemistry
Grade-8
Easy
Question
Identify the technique of separation which is used for the separation of two liquids shown in following picture:
- Separation by using solvent
- Simple distillation
- Fractional distillation
- Sedimentation
Hint:
The chemical compounds are heated and the cooled.
The correct answer is: Fractional distillation
Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate. Generally the component parts have boiling points that differ by less than 25 °C (45 °F) from each other under a pressure of one atmosphere pressure.
The given picture shows fractional distillation.
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