JEE Main 2021 — Electrochemistry Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
The magnitude of the change in oxidising power of the couple is x 104 V, if the H+ concentration is decreased from 1M to 104 M at 25C. (Assume concentration of and to be same on change in H+ concentration). The value of x is ___________.
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Show full solutionCorrect answer: 3776
Correct answer
3776
Step-by-step explanation
Reaction,
n = 5
Applying Nernst equation,
or
(I) Given, [H+] = 1 M
(II) Now, [H+] = 104 M
x = 3776
n = 5
Applying Nernst equation,
or
(I) Given, [H+] = 1 M
(II) Now, [H+] = 104 M
x = 3776
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