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CGP EDU Academic Team
Published on: August 12, 2026
The charge on As 2 S 3 sol is due to the adsorbed:
Text Solution
Verified by ExpertsThe correct answer is:
D
As 2 S 3 colloidal sol is obtained when As 2 O 3 is saturated with H 2 S:
As 2 O 3 + 3H 2 S → As 2 S 3 + 3H 2 O.
As 2 S 3 adsorbs S 2– ions (common between H 2 S and As 2 S 3 and thus is negatively charged).
As 2 S 3 + H 2 S → As 2 S 3 S 2– : 2H + .
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