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Consider following half cell reaction and corresponding standard (reduction) electrode potentials. I. `A+e^(-)rarrA:E^(@)=-24V` II. `B^(-)+e^(-)rarrB^(2-):E^(@)=+1.25V` III. `C^(-)+2e^(-)rarrC^(3-):E^(@)=-1.25V` IV. `D+2e^(-)rarrD^(2-):E^(@)=+0.68V` V. ` E+4e^(-)rarrE^(-4):E^(@)=0.38V`. If every ion has concentration 1 M in the cell the largest cell potential at 298K isA. 2.50VB. 1.49VC. 1.06VD. 1.91V.

Answer» Correct Answer - A


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