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.

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.

if both assertion and reason are true and reason is the correct explanation of assertion.
if both assertion and reason are true but reason is not the correct explanation of assertion.
assertion is true but reason is false.
both assertion and reason are false.

MCQ

if both assertion and reason are true and reason is the correct explanation of assertion.

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Colloid, Dispersion Phase and Dispersion Medium

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Chapter 10: Surface Chemistry - Evaluation [Page 100]

Chapter 10 Surface Chemistry
Evaluation | Q 5. | Page 100