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MHT CET Chemistry question

ChemistryElectrochemistryMHT CET

If the standard oxidation potential, E for the half cell reaction are Zn → Zn + 2e ; E = +0.76 V and Fe → Fe + 2e ; E = 0.41 V. The E.M.F. for the cell reaction Fe + Zn → Zn + Fe, is:

Answer: (B)

Solution

Zn is oxidised and Fe is reduced, so E = E(Zn) + E(Fe) = 0.76 + (-0.41) = +0.35 V; the 1.17 V

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Question ID VK-066357