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The standard electrode potential E° for Fe^3+ + e¯ → Fe^2+

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Given standard electrode potentials : 

Fe3+ + 3e¯ → Fe ; E° = –0.036 volt

Fe2+ + 2e¯ → Fe; E° = –0.440 volt

The standard electrode potential E° for Fe3+ + e¯ → Fe2+

(A) –0.476 volt 

(B) –0.404 volt

(C) 0.440 volt 

(D) 0.772 volt

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Correct Answer is: (D) 0.772 volt

E° = 0.772 Volt

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