Besides Its Ability to Function as an Acid,hydrosulfuric Acid,H₂S,is Able

Multiple Choice

Besides its ability to function as an acid,hydrosulfuric acid,H₂S,is able to act as a reducing agent.Which one of the following equations illustrates this property of H₂S?

A) H₂S(aq) + 2OH^-(aq) → S^2-(aq) + 2H₂O(l)
B) H₂S(aq) + 2Na(s) → H₂(g) + 2Na⁺(aq) + S^2-(aq)
C) H₂S(aq) + 2AgI(s) → Ag₂S(s) + 2H⁺(aq) + 2I^-(aq)
D) H₂S(aq) + Cu²⁺(aq) → CuS(s) + 2H⁺(aq)
E) 3H₂S(aq) + 2H⁺(aq) + 2NO₃^-(aq) → 3S(s) + 2NO(g) + 4H₂O(l)