Question

16. Give an example each for the mixture having the following characteristics. Suggest a suitable method to separate the components of these mixtures:
(i) Two volatile liquids with appreciable difference in boiling points.
(ii) One of the components changes directly from solid to gases state. (iii) Two or more coloured constituents soluble in the same solvent.

Answer 1

Answer:

(i)Example Mixture of kerosene and petrol.

Method Simple distillation can be used to separate two volatile components with appreciable difference in boiling points.

(ii)Example Mixture of ammonium chloride and common salt.

Method Sublimation can be used to separate the mixture in which one component changes directly from solid to gas.

(iii)Example A mixture of different pigments from an extract of flower petals.

Method Chromatography method can be used to separate two different substances present in the same solution