JEE Main 2026 — Electrochemistry Question with Solution
JEE Main 2026 (28 January Shift 2)
Question
A volume of of solution was mixed with of solution to make an electrolytic buffer. If the same buffer was used in the following electrochemical cell to record a cell potential of , then the value of mL (nearest integer).
Consider up to one place of decimal for intermediate calculations.
Consider up to one place of decimal for intermediate calculations.
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Show full solutionCorrect answer: 78
Correct answer
78
Step-by-step explanation
We have considered
Oxidation Half :
Reduction Half :
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Oxidation Half :
Reduction Half :
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This is a previous-year question from JEE Main 2026, 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.