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Amoug the electrolytes Na(2)SO(4), CaCl(...

Amoug the electrolytes `Na_(2)SO_(4), CaCl_(2), Al_(2)(SO_(4))_(3)` and `NH_(4)Cl`, the most effective coagulating agent for `Sb_(2)O_(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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