JEE Main 2021ChemistryChemical Bonding and Molecular StructureMediumNumerical

JEE Main 2021Chemical Bonding and Molecular Structure Question with Solution

JEE Main 2021 (27 Jul Shift 2)

Question

The total number of electrons in all bonding molecular orbitals of O22- is ......... (Round off to the nearest integer)

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Show full solutionCorrect answer: 10
Correct answer
10

Step-by-step explanation

M. O. Configuration of O22- ( (18e¯)

σ1 s2σ*1 s2σ2 s2σ*2 s2σ2pz2π2px2=π2py2π*2px2=π*2py2

Total B.M.O electrons =10

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About this question

This is a previous-year question from JEE Main 2021, covering the Chemical Bonding and Molecular Structure 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.