JEE Main 2023 — Electrochemistry Question with Solution
From: JEE Main 2023 (Online) 6th April Morning Shift
Question
The standard electrode potential of in aqueous solution does not depend on
Choose an option
Show full solutionCorrect option: C
Step-by-step explanation
The standard electrode potential (E°) of a metal ion M+/M in aqueous solution is calculated under standard conditions and relates to the tendency of the M+ ion to gain an electron to form the neutral metal atom, M.
This is indeed a redox (reduction-oxidation) process, and the standard electrode potential is defined for the reduction half-reaction. E° values are based on the energies involved in the processes of ionization and hydration.
However, the standard electrode potential does not depend on the state (solid, liquid, gas) of the atom being ionized. Ionization of a solid metal atom (Option C) would not directly impact the electrode potential as it is not inherently part of the process of reduction at the electrode that the E° values are measuring.
The correct answer should be Option C : Ionisation of a solid metal atom.
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This is a previous-year question from JEE Main 2023, 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.