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Assertion : For the coagulation of sol...

Assertion : For the coagulation of sols carrying positive charege `PO_(4)^(3-)` ions are more efficient than `SO_(4)^(2-)` or `CI^(-)` ions Reason : This follows Hardy schulze rule

A

If both (A) and (R) are correct, and (R) is the correct explanation of (A)

B

If both (A) and (R) are correct, but (R) is not the correct explanation of (A)

C

If (A) is correct, but (R) is incorrect

D

If (A) is incorrect, but (R) is correct

Text Solution

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The correct Answer is:
A
According to Hardy-Schulze rule, coagulating power of an electrolyte is directly proportional to the fourth power of the valency of the ions causing coagulation.
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