JEE Main 2020 — Chemical Bonding And Molecular Structure Question with Solution
From: JEE Main 2020 (Online) 2nd September Morning Slot
Question
If AB4 molecule is a polar molecule, a possible
geometry of AB4 is
Choose an option
Show full solutionCorrect option: B
Correct answer
Bsee-saw
Step-by-step explanation
| Compound | Electronic Geometry | Moleculer Geometry or Moleculer Shape |
Lone Pair | Polarity |
|---|---|---|---|---|
| AB4 | Tetrahedral | Tetrahedral | 0 | Nonpolar |
| AB4 | Trigonal Bipyramidal | see-saw | 1 | Polar |
| AB4 | Octahedral (Square Bipyramidal) |
Square Planar | 2 | Nonpolar |
Note : The difference between Electronic Geometry and Moleculer Geometry(Moleculer Shape) is that in Electronic Geometry we include lone pair but in Moleculer Geometry(Moleculer Shape) we do not include lone pair.
Here in this question it is not clear which geometry they are talking about, correct answer should be either Trigonal Bipyramidal or see-saw.
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.