JEE Main 2018ChemistryChemical Bonding and Molecular StructureMediumMCQ

JEE Main 2018Chemical Bonding and Molecular Structure Question with Solution

JEE Main 2018 (08 Apr)

Question

According to molecular orbital theory, which of the following molecule will not be available?

Choose an option

Show full solutionCorrect option: A
Correct answer
AH22-

Step-by-step explanation

The electronic configuration of H22 is     σ1s2, σ*1s2



Bond order of H22=Nb-Na2=2-22=0

Hence, H22 does not exist, due to zero bond order.

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About this question

This is a previous-year question from JEE Main 2018, 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.