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Electrochemistry question

2022 · 25 Jun · Shift 1 · Q20

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JEE Main
Chemistry
Electrochemistry
2022 · 25 Jun · Shift 1 · Q20

Electrochemistry question

2022 · 25 Jun · Shift 1 · Q20

JEE MainChemistryElectrochemistryNumerical+4 / −1

In a cell, the following reactions take place

\begin{matrix} {F{e^{2 + }} \to F{e^{3 + }} + {e^ - }} & {E_{F{e^{3 + }}/F{e^{2 + }}}^o = 0.77\,V} \\ {2{I^ - } \to {I_2} + 2{e^ - }} & {E_{{I_2}/{I^ - }}^o = 0.54\,V} \\ \end{matrix}

The standard electrode potential for the spontaneous reaction in the cell is x

\times

10

-

2 V 298 K. The value of x is

\underline{\hspace{2cm}}

. (Nearest Integer)

Numerical answer

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