• # question_answer 68)   Complete the following reactions : (i) $O_{2}^{2-}+{{H}_{2}}O\to$ (ii) $O_{2}^{-}+{{H}_{2}}O\to$

(i) $O_{2}^{2-}+2{{H}_{2}}O\to 2O{{H}^{-}}+{{H}_{2}}{{O}_{2}}$ (ii) $2O_{2}^{-}+2{{H}_{2}}O\to 2O{{H}^{-}}+{{H}_{2}}{{O}_{2}}+{{O}_{2}}$