JEE Main 2020 — Chemical Bonding And Molecular Structure Question with Solution
From: JEE Main 2020 (Online) 8th January Evening Slot
Question
Arrange the following bonds according to their
average bond energies in descending order :
C–Cl, C–Br, C–F, C–I
C–Cl, C–Br, C–F, C–I
Choose an option
Show full solutionCorrect option: D
Correct answer
DC–F > C–Cl > C–Br > C–I
Step-by-step explanation
Bond length order in carbon halogen bonds are
in the order of C – F C – Cl C – Br C – I
Hence, Bond energy order
C – F C – Cl C – Br C – I
in the order of C – F C – Cl C – Br C – I
Hence, Bond energy order
C – F C – Cl C – Br C – I
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 2020, 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.