Concept:VSEPR (Valence Shell Electron Pair Repulsion) theory was designed exclusively to predict the 3D geometry of molecules based on electrostatic repulsions.
Formula:$$ \text{Geometry is defined by minimizing LP/BP repulsion.} $$
Solution:- VSEPR theory postulates that electron pairs (both bonding and lone pairs) in the valence shell of a central atom will arrange themselves as far apart as possible to minimize repulsion.
- This spatial arrangement directly dictates the physical shape (geometry) of the molecule (e.g., linear, tetrahedral, bent).
- It does not mathematically calculate bond energies or bond lengths.
Why other options are incorrect:- Option A, Option B, Option C: Bond energies and lengths are explained by Molecular Orbital Theory and Valence Bond Theory (orbital overlap), not by VSEPR.
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