Question

The charge on $A{s}_2{S}_3$ sol is due to the adsorption of :

• A. $H^{+}$
• B. $O{H}^{-}$
• C. $O_2^{-}$
• D. $S^{2-}$

Answer 1

The correct option is D $S^{2-}$

The negative charge on $A{s}_2{S}_3$ sol particles is due to the preferential adsorption of $S^{2-}$ on the surface of sol particles.