The most suitable electrolyte for the coagula | vedclass

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Question

(A) Arsenic sulphide $(As_2S_3)$ sol is a negatively charged sol. According to the Hardy-Schulze rule,the coagulating power of an electrolyte depends

Vedclass · Accepted Answer

$AlCl_3$

Vedclass · Answer

(A) Arsenic sulphide $(As_2S_3)$ sol is a negatively charged sol. According to the Hardy-Schulze rule,the coagulating power of an electrolyte depends on the valency of the active ion (the ion carrying a charge opposite to that of the sol). For a negatively charged sol,the coagulating power of cations follows the order: $Al^{3+} > Ba^{2+} > Na^+ = K^+$. Therefore,$AlCl_3$ is the most effective electrolyte for the coagulation of $As_2S_3$ sol.

The most suitable electrolyte for the coagulation of arsenic sulphide sol will be

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