(i) the ions carrying the charge opposite to that of sol particles are effective in causing coagulation.
(ii) coagulation power of an electrolyte is direclty proportional to the 4th power of the valency of the active ions.
bt instead of usin the 2nd-rule we hv to use the gold num method... where gold num meanz ts the num of milligrams of gold sol added jus to prevent the coagulation of 10 ml of of 0.1 % NaCl soln. so as to find the coagulatin power of an electrolyte efficiently.
Moderation Team
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