JEE Main 2020ChemistryChemical Bonding and Molecular StructureMediumMCQ

JEE Main 2020 — Chemical Bonding and Molecular Structure Question with Solution

JEE Main 2020 (04 Sep Shift 1)

Question

The intermolecular potential energy for the moleculesA ,B , C and D given below suggests that:

Choose an option

Show full solutionCorrect option: D
Correct answer
DA-B has the stiffest bond.

Step-by-step explanation

Bond enthalpy of AB bond is highest so A-B bond is more strong and B is highest electronegative atom. Order of bond length ⇒A-A<A-B<A-C<A-D

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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.