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Assertion : Sulphide ores are concentrat...

Assertion : Sulphide ores are concentrated by Froth Floatation method.
Reason : Cresols stabilise the froth in Froth Floatation method.

A

Both assertion and reason are true and reason is the correct explanation of assertion.

B

Both assertion and reason are true but reason is not the correct explanation of assertion.

C

Assertion is true but reason is false.

D

Assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
B
Correct explanation. Sulphide ore particles are preferentially wetted by oil, become lighter and thus rise to the surface along with the froth while gangue particles are preferentially wtted by water, become heavier and thus settle down at the bottom of the tank.
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