JEE Main 2019 — Chemical Bonding And Molecular Structure Question with Solution
From: JEE Main 2019 (Online) 9th January Morning Slot
Question
According to molecular orbital theory, which of the following is true with respect to Li2+ and Li2 ?
Choose an option
Show full solutionCorrect option: C
Correct answer
CBoth are stable
Step-by-step explanation
(5 electrons) =
(7 electrons) =
Bond order of = = 0.5
Bond order of = = 0.5
As both and has non-zero bond order, so both are stable.
(7 electrons) =
Bond order of = = 0.5
Bond order of = = 0.5
As both and has non-zero bond order, so both are stable.
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.