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CGP EDU Academic Team
Published on: August 13, 2026
In the froth floatation process for the purification of minerals the particles float because :
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Verified by ExpertsThe correct answer is:
C
This method is commonly used for the concentration of the low grade sulphide ores like galena, PbS (ore of Pb) ; copper iron pyrites Cu 2 S.Fe 2 S 3 or 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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