JEE Main 2021 — Redox Reactions Question with Solution
From: JEE Main 2021 (Online) 26th February Morning Shift
Question
Dichromate ion is treated with base, the oxidation number of Cr in the product formed is ___________.
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Show full solutionCorrect answer: 6
Correct answer
6
Step-by-step explanation
⇌
Let Oxidation state of Cr in is = x.
x + (–2 × 4) = –2
x = 6
Let Oxidation state of Cr in is = x.
x + (–2 × 4) = –2
x = 6
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This is a previous-year question from JEE Main 2021, covering the Redox Reactions 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.