Fractional distillation of ethyl alcohol-water mixture gives a mixture of 95.6 % ethyl alcohol and 4.4 % water. Further separation can be brought about either by the addition of CaO or by the additon of a water soluble salt such as potassium acetate. Justify the formation of pure ethyl alocohol in both the cases.

Explanation

(i) method of separation
(ii) changes in the boiling point of water on addition of water-soluble salt
(iii) method of separation
(iv) method of separation
(v) changes in the boiling point of water on addition of water-soluble salt
(vi) method of separation