question_answer

The anode half-reaction occurring during the discharge of a lead storage battery is

A)                 \[Pb(s)+S{{O}_{2}}+{{O}_{2}}\to PbS{{O}_{4}}(s)\]

B)                 \[Pb(s)+SO_{4}^{2-}(aq)\]⇌\[PbS{{O}_{4}}(s)+2{{e}^{-}}\]

C)                 \[Pb{{O}_{2}}(s)+4{{H}^{+}}(aq)+2{{e}^{-}}+SO_{4}^{2-}(aq)\]⇌ \[PbS{{O}_{4}}(s)+2{{H}_{2}}O\]

D)                 \[P{{b}^{2+}}(aq)+SO_{4}^{2-}(aq)\to PbS{{O}_{4}}(s)\]