Statement 1: Sulphide ores are concentrated by froth flotation method.
Statement 2: Cresols stabilise the froth in froth floatation method.

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Both statements 1 and 2 are correct

Statement 1 is correct statement 2 is incorrect

Statement 1 is incorrect statement 2 is correct

Both statements 1 and 2 are incorrect

answer is B.

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Detailed Solution

Sulphide ores are concentrated by froth floatation method. Sulphide ore particles are preferentially wetted by oil, become lighter and rise to the surface along with the froth while gangue particles are preferentially wetted by water, become heavier and thus settle down at the bottom of the tank and cresols stabilise the froth in froth floatation method. Formation of froth is main reason for extraction of metal. Metal ore comes out along with froth.

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