Verified Solution • 2025–26 Session
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QJEEM20Ch91b1: JEE Main 2020 Chemistry - Class 11 JEEM20Ch91b1 Solution: If AB 4 molecule is a polar molecule, a possible geometry of AB …
If AB4 molecule is a polar molecule, a possible geometry of AB4 is
Multiple Choice Options
- A Tetrahedral
- B see-saw
- C Square pyramidal
- D Square planar
Step-by-Step Verified Solution
| 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.