Which One of the Following Equations Represents the Ionization of a Weak

Multiple Choice

Which one of the following equations represents the ionization of a weak monoprotic acid in water?

A) HCN(aq) + H₂O(l) H₃O⁺(aq) + CN^-(aq)
B) HCN(aq) + OH^-(aq) H₂O(l) + CN⁺(aq)
C) CN^- (aq) + H₂O(aq) HCN(aq) + OH^-(aq)
D) HCN(aq) + OH^- (aq) H₂O(l) + CN^-(aq)
E) HCN(aq) + NH₃(aq) NH₄CN(aq)