Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The most effective coagulating agent for antimony sulphide sol is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
According to Hardy-Scheulze rule, the coagulating power of an electrolyte will be higher for ionic components having greater charges or valencies.
For coagulating a sol of a particular charge, we add particles of opposite charge.
Thus, to coagulate antimony sulphide sol which is negatively charged, we must add an electrolyte with a cation of higher valency.
Thus, 
that has 
, will be most effective for coagulating antimony sulphide.
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