JEE Main 2019ChemistryChemical Bonding And Molecular StructureMolecular Orbital TheoryeasyMCQ

JEE Main 2019Chemical Bonding And Molecular Structure Question with Solution

From: JEE Main 2019 (Online) 10th April Morning Slot

Question

During the change of O2 to O2- , the incoming electron goes to the orbital :

Choose an option

Show full solutionCorrect option: C
Correct answer
C

Step-by-step explanation

Molecular orbital configuration of O2 (16 electrons) is



Molecular orbital configuration of O2- (17 electrons) is



So, the incoming electron goes to or

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Chemical Bonding And Molecular Structure chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2019, 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.