JEE Main 2022 · ChemistryMultiple choiceSingle correctMediumMulti-step

JEE Main 25 June 2022, Shift 2, Chemistry Q70

Question 70 of 90 in this shift, Chemistry question 10 of 30, Section A.

The number of bridged oxygen atoms present in compound B formed from the following reactions is

\mathrm{Pb(NO_3)_2} \xrightarrow{673\ \mathrm{K}} \mathrm{A + PbO + O_2}

\mathrm{A} \xrightarrow{\mathrm{Dimerise}} \mathrm{B}

(1)0Official answer
(2)1
(3)2
(4)3

Official answer

Option 1

NTA final key.

Chapter: The p-Block Elements
Topic: Stoichiometry
Idea tested: Thermal Decomposition of Nitrates

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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.