Froth floatation :

Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Froth floatation :

is a physical method of separating mineral from the gangue

is a method of concentration of ore depending on the difference in wetability of gangue and the ore particles.

is used for the concentration of sulphide ores

is a method in which impurities sink to the bottom and ore particles pass on to the surface with froth.

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(a,b,c,d)This method is commonly used for the concentration of the low grade sulphide ores like galena, PbS (ore of Pb); copper pyrites CuFeS 2 (ore of copper); zinc blende, ZnS (ore of zinc) etc., and is based on the fact that gangue and ore particles have dIfferent degree of wettability with water and pine oil; the gangue particles are preferentially wetted by water while the ore particles are wetted by oil.

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