Question

On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used. (a)Sublimation (b)Chromatography (c)Fractional Distillation

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Answer 1

Answer:

Sublimation : Change of solid into vapours directly on heating and change of vapours into solid again on

Example : Salt from ammonium chloride

An example of chromatography is when a chemical reaction is used to cause each of the different size molecules in a liquid compound to separate into their own parts on a piece of paper.

Fractional distillation is a method for separating liquids with different boiling points. For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This method works because the liquids in the mixture have different boiling points.

Explanation:

Answer 2

Answer:

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