Assertion (A) Coagulation power of `Al^(3+)` is more than `Na^(+)`.
Reason (R) Greater the valency of the flocculating ion added, greater is its power to cause precipitation (Hardy-Schulze rule) .

Assertion (A): Coagulation power of Al^(3+) is more than that of Na^(+) . Reason (R): Greater the valency of the flocculating ion added, greater is its power to cause precipitation (Hardy Schulze rule).

Assertion : Coagulation power of Al^(3+) is more than Na^(+) . Reason : Greater the valency of the flocculating ion added greater is its power to cause precipitation (Hardy Schulze rule) .

Assertion : Coagulation power of Al^(3+) is more than Na^(+) . Reason : greater the valency of the flocculating ion added, greater is its power to cause precipitation

Assertion : In the coagulation of a negative sol the flocculating power is in the order : Al^(3+) gt Ba^(2+) gt Na^(+) Reason : Greater the valence of the flocculating ion added, greater is its power to cause precipitation.