Which of the following will have the highest coagulation power for As2S3 colloid PO43- Al3+ SO42- Next clear - Chemistry - Surface Chemistry

Question

Which of the following will have the highest coagulation power
for As2S3 colloid?
PO4 3-
Al3+
SO4 2-

Next
clear
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for="question_9_0_0_4"Na+

Next
clear
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for="question_9_0_0_4"how do we decide that As2S3 forms -vely or
+vely charged sol?

na · Accepted Answer

According to hardy scruze rule :- the more positively highly
charged cation will have the more coagulating power towards the
negative charge sol

As2S3 sol is negatively charged sol ,
Al3+ has the greater charge therefore Al3+ is most
effective in coagulation of the sol As2S3

Which of the following will have the highest coagulation power for As2S3 colloid? PO4 3- Al3+ SO4 2- Next clear " jquery1707830165874125743="51" for="question_9_0_0_4"Na+ Next clear " jquery1707830165874125743="51" for="question_9_0_0_4"how do we decide that As2S3 forms -vely or +vely charged sol?