A) \[A{{s}_{2}}{{S}_{3}}\]
B) \[A{{s}_{2}}{{O}_{3}}\]
C) \[A{{s}_{2}}S\]
D) \[A{{s}_{2}}{{H}_{2}}\]
Correct Answer: A
Solution :
It is due to adsorption of \[{{S}^{2-}}\] ions on the surface of the colloidal particles and \[{{H}^{+}}\]ions in the diffused layer.
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