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Assertion : Coagulation power of Al3+ is more than Na+.

Reason : Greater the valency of the flocculating ion added, greater is
its power to cause precipitation (Hardy Schulze rule).
(i) Assertion and reason both are correct and the reason is correct explanation
of assertion.
(ii) Assertion and reason both are correct but reason does not explain
(iii) Assertion is correct but reason is incorrect.
(iv) Both assertion and reason are incorrect.
(v) Assertion is incorrect but reason is correct.

Chemistry - Exemplar Problems

Chapter 5. Surface Chemistry



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Option one is correct
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