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Among the electrolytes Na, SO4 , CaCl4 ...

Among the electrolytes ` Na, SO_4 , CaCl_4 , Al_2(SO_4)_3` and ` NH_4 Cl`, the most effective coagualting agent for ` Sb_2 S_3` sol is :

A

NaSO4

B

CaCl2

C

Al2(SO4)3

D

NH4Cl

Text Solution

Verified by Experts

`Sl_2S` is a negative (anionic) sol. According to Hardy Schulze rule, greater then valency of cationic coagulating agent, higher its coagulating power. Therefore, `A_2l_4CS` will be the most effective coagulating agent in the present case.
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