SO2 - Sulfur Dioxide:
First draw the Lewis dot structure:
Electron geometry: trigonal planar. Hybridization: sp2
Then draw the 3D molecular structure using VSEPR rules:
The molecular geometry of SO2 is bent (approx. 120 degrees) with asymmetric charge distribution on the central atom.
Therefore this molecule is polar.
Sulfur Dioxide on Wikipedia.
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