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Electrochemistry question

2017 · 8 Apr · Shift 1 · Q14
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Electrochemistry question

2017 · 8 Apr · Shift 1 · Q14

JEE MainChemistryElectrochemistryMCQ+4 / −1
What is the standard reduction potential (Eo) for Fe3+Fe^{3+}Fe3+ →\to→ Fe ? Given that : Fe2+Fe^{2+}Fe2+ + 2e −→- \to−→ Fe; EFe2+/FeoE_{F{e^{2 + }}/Fe}^oEFe2+/Feo​=−-− 0.47 V Fe3+Fe^{3+}Fe3+ + e −→- \to−→ Fe2+Fe^{2+}Fe2+; EFe3+/Fe2+oE_{F{e^{3 + }}/F{e^{2 + }}}^oEFe3+/Fe2+o​ = +0.77 V
  1. A
    −-− 0.057 V
  2. B
    + 0.057 V
  3. C
    + 0.30 V
  4. D
    −-− 0.30 V
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