JEE Main 2004 — Electrochemistry Question with Solution
From: AIEEE 2004
Question
The values for Cr, Mn, Fe and Co are – 0.41, +1.57, + 0.77 and +1.97 V
respectively. For which one of these metals the change in oxidation state form +2 to +3 is
easiest?
Choose an option
Show full solutionCorrect option: C
Correct answer
CCr
Step-by-step explanation
The given values show that has maximum oxidation potential, therefore its oxidation will be easiest. (Change the sign to get the oxidation values)
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This is a previous-year question from JEE Main 2004, 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.