Question

The solution of impure compound and solvent is concentrated to get ____________

(a) Unsaturated solution

(b) Undersaturaed solution

(c) Saturated solution

(d) Oversaturated solution

I have been asked this question in unit test.

This is a very interesting question from Crystallisation topic in section Methods of Purification of Engineering Chemistry I

Answer 1

Right choice is (c) Saturated solution

To explain: The solution of impure compound and solvent is concentrated to get a saturated solution. The solution is filtered to remove insoluble impurities.