JEE Main 2022ChemistryElectrochemistryElectrochemical Series Cell And Their EmfeasyNumerical

JEE Main 2022Electrochemistry Question with Solution

From: JEE Main 2022 (Online) 25th June Morning Shift

Question

In a cell, the following reactions take place

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

The standard electrode potential for the spontaneous reaction in the cell is x 102 V 298 K. The value of x is ____________. (Nearest Integer)

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Show full solutionCorrect answer: 23
Correct answer
23

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About this question

This is a previous-year question from JEE Main 2022, covering the Electrochemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.