JEE Main 2022 · ChemistryNumerical answerNumerical valueEasyRecall

JEE Main 29 July 2022, Shift 2, Chemistry Q87

Question 87 of 90 in this shift, Chemistry question 27 of 30, Section B.

Consider the following sulphur based oxoacids.

\mathrm{H_2SO_3}

\mathrm{H_2SO_4}

\mathrm{H_2S_2O_8}

and

\mathrm{H_2S_2O_7}

. Amongst these oxoacids, the number of those with peroxo (O-O) bond is ______

Official answer

NTA final key.

Chapter: The p-Block Elements
Topic: Group 15 & 16
Idea tested: Sulfur Oxoacids

Same idea in other shifts

Asked 5× in all

9 Apr 2024, Shift 2 · Q89Number of oxygen atoms present in chemical formula of fuming sulphuric acid is ________.EasyNumerical value
28 Jun 2022, Shift 2 · Q71Which of the following oxoacids of sulphur contains “S” in two different oxidation states ?MediumSingle correct
31 Aug 2021, Shift 2 · Q36The number of S=O bonds present in sulphurous acid, peroxodisulphuric acid and pyrosulphuric acid, respectively are :MediumSingle correct
8 Jan 2020, Shift 1 · Q35The number of bonds between sulphur and oxygen atoms in $\mathrm{S_2O_8^{2-}}$ and the number of bonds between sulphur and sulphur atoms…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.