Question

On which of the following properties does the coagulating power of an ion depend?

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Answer 1

Hardy Schulze Rule: The coagulation capacity of various electrolytes is different. It relies on the valency of the active ion called a flocculating ion, which is the ion carrying charge contrasting to the charge on the colloidal particles.

“According to Hardy Schulze rule, more the valency of the active ion or flocculating ion more will be its coagulating power”.

Thus, Hardy Schulze law state:
(i) The particles carrying the charge opposite to that of sol particles is fruitful in causing a coagulation of the sol.
(ii) The coagulating power of an electrolyte is directly proportional to the valency of the active ions (ions causing coagulation).
Thus, the coagulating power on an ion depends on both magnitude and sign of the charge on the ion.
Hence, the correct option is A.