JEE Main 2009 — Electrochemistry Question with Solution
From: AIEEE 2009
Question
Given : = -0.036V; = -0.439 V
The value of standard electrode potential for the change,
Fe3+ (aq) + e- Fe2+ (aq) will be
The value of standard electrode potential for the change,
Fe3+ (aq) + e- Fe2+ (aq) will be
Choose an option
Show full solutionCorrect option: C
Correct answer
C0.770 V
Step-by-step explanation
Given
we have to calculate
To obtain this equation subtract equ from we get
As we know that
Thus for reaction
we have to calculate
To obtain this equation subtract equ from we get
As we know that
Thus for reaction
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This is a previous-year question from JEE Main 2009, 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.