question_answer

Given standard electrode potentials                 \[F{{e}^{++}}+2{{e}^{-}}\,\to \,Fe\,;\,\,\,\,{{E}^{o}}=-0.440\,\,V\]                 \[F{{e}^{+++}}+3{{e}^{-}}\,\to \,Fe\,;\,\,\,\,{{E}^{o}}=-0.036\,\,V\]                 The standard electrode potential \[({{E}^{o}})\] for                 \[F{{e}^{+++}}+{{e}^{-}}\to \,F{{e}^{++}}\] is                                      [AIIMS 1982]

A)                 ? 0.476 V             

B)                 ? 0.404 V

C)                 + 0.404 V             

D)                 + 0.771 V