JEE Main 2019 — Electrochemistry Question with Solution
From: JEE Main 2019 (Online) 9th January Evening Slot
Question
If the standard electrode potential for a cell is 2 V at 300 K, the equilibrium constant (K) for the reaction
Zn(s) + Cu2+ (aq) Zn2+(aq) + Cu(s)
at 300 K is approximately,
(R = 8 JK1mol1, F = 96000 C mol1)
Zn(s) + Cu2+ (aq) Zn2+(aq) + Cu(s)
at 300 K is approximately,
(R = 8 JK1mol1, F = 96000 C mol1)
Choose an option
Show full solutionCorrect option: D
Correct answer
De160
Step-by-step explanation
Go = RT lnk = nFEocell
lnk =
lnk = 160
k = e160
lnk =
lnk = 160
k = e160
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This is a previous-year question from JEE Main 2019, 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.