, The Standard EMF Of The Reaction,

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Question

, the standard EMF of the reaction,

easy

Solution

Correct option is

1.212 V

Since the E^o of Fe²⁺/Fe(– 0.441 V) is lower than that of Fe³⁺/Fe²⁺ (+ 0.771 V) electrode, therefore, oxidation occurs at Fe²⁺/Fe electrode and reduction at Fe³⁺/Fe²⁺ electrode.

= 0.771 V – (– 0.441 V) = 1.212 V.