Greater the valency of ion, more will be coagulating power is __________ rule.
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Answer:
Hardy-Schulze Law
Explanation:
According to them, the greater the valency of the active ion, greater is the power to cause coagulation. Active ion is responsible for coagulation.
In the case of negatively charged sols (As2S3 is negative sol), the coagulation power is in order of
Al+3>Ca+2>Na+
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