Which of the following ores is best concentra | vedclass

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(A) The correct answer is $(A)$.Froth-flotation is a process specifically used for the concentration of sulphide ores.Galena $(PbS)$ is a sulphide ore

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Galena

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(A) The correct answer is $(A)$.Froth-flotation is a process specifically used for the concentration of sulphide ores.Galena $(PbS)$ is a sulphide ore.Cassiterite $(SnO_2)$ is an oxide ore.Magnetite $(Fe_3O_4)$ is an oxide ore.Malachite $(Cu(OH)_2 \cdot CuCO_3)$ is a carbonate ore.Therefore,only Galena is concentrated by the froth-flotation method,which relies on the preferential wetting of sulphide particles by oil (frothing agent) and gangue particles by water.

Which of the following ores is best concentrated by the froth-flotation method?

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