1.

In froth floatation process many chemicals (frother, collector, activator and depressant) are used. Which is called a frother ? (a) Pine oil (b) CuSO4 (c) Potassium xanthate (d) NaCN + alkali 

Answer»

Correct option (a) Pine oil

Explanation:

Froth is a colloidal system of a gas in liquid. It has very good adsorption capacity, frothers generate a stable froth which rises to the top of the tank. The best example of frother is pine oil.



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