The most effective coagulating agent for anti | vedclass

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(C) According to the $Hardy-Schulze$ rule,the coagulating power of an electrolyte is directly proportional to the valency of the active ion (ion with

Vedclass · Accepted Answer

$Al_2(SO_4)_3$

Vedclass · Answer

(C) According to the $Hardy-Schulze$ rule,the coagulating power of an electrolyte is directly proportional to the valency of the active ion (ion with charge opposite to that of the sol).Antimony sulphide $(Sb_2S_3)$ sol is a negatively charged sol.Therefore,it requires a positively charged ion for coagulation.The coagulating power increases with the increase in the magnitude of the charge on the cation.The cations present in the given options are: $K^+$ $(+1)$,$NH_4^+$ $(+1)$,$Al^{3+}$ $(+3)$,and $K^+$ $(+1)$.Since $Al^{3+}$ has the highest valency $(+3)$,$Al_2(SO_4)_3$ is the most effective coagulating agent.

The most effective coagulating agent for antimony sulphide sol is

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