JEE Main 2021 — Electrochemistry Question with Solution
From: JEE Main 2021 (Online) 26th February Morning Shift
Question
Consider the following reaction
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The quantity of electricity required in Faraday to reduce five moles of is ___________. (Integer answer)
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The quantity of electricity required in Faraday to reduce five moles of is ___________. (Integer answer)
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Show full solutionCorrect answer: 1
Correct answer
1
Step-by-step explanation
1 mole of MnO4- required 5 moles of electrons or 5 F electricity.
5 moles of MnO4- required 25 F electricity.
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This is a previous-year question from JEE Main 2021, 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.