JEE Main & Advanced
JEE Main Paper (Held On 8 April 2017)
question_answer
What is the standard reduction potential \[(E{}^\circ )\] for \[F{{e}^{3+}}\to Fe\]? Given that: [JEE Online 08-04-2017] \[F{{e}^{2+}}+2{{e}^{-}}\to Fe;{{E}^{o}}_{F{{e}^{2+}}/Fe}=-0.47V\] \[F{{e}^{3+}}+{{e}^{-}}\to F{{e}^{2+}};{{E}^{o}}_{F{{e}^{3+}}/F{{e}^{2+}}}=+0.77V\]