JEE Main 2021 — D And F Block Elements Question with Solution
From: JEE Main 2021 (Online) 26th February Evening Shift
Question
In mildly alkaline medium, thiosulphate ion is oxidized by to "A". The oxidation state of sulphur in "A" is __________.
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Correct answer
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Step-by-step explanation
Oxidation number of sulphur in SO42- (A) is + 6.
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This is a previous-year question from JEE Main 2021, covering the D And F Block Elements 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.