Standard electrode potential for Sn4+/Sn2+couple is +0. 15V and that for the Cr3+/Cr couple is - 0.74 V. These two couples in their standard state are connected to make a cell. The cell potential will be

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+1.83 V

+1.19 V

+0.89 V

+0.18 V

answer is C.

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Detailed Solution

Ecell ∘=Ecathode(RP) ∘−Eanode(RP) ∘ =0.15−(−0.74)=+0.89V

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