Valence shell electron pair repusin theory `(VSEPR)` can be used to perdict the approximate shape of molecules. Electrons in bonds and in lone pairs can ve thought of as `"charge cloud"` that repel one another and stay as far apart possible, thus causing molecules to assume specific shapes.
The repulsive interacions of electro paris decrease in the order :
Lone pair-lone pair `gt` Lone pair -bond pair `gt` Bond pair -bond pair.
These replusions effect result in deviations from idealized shapes and alternative in bond aegles in molecules.
The species which has pyramidal shape is :
A. `ICl_(3)`
B. `SO_(3)`
C. `PCl_(3)`
D. `overset(ddot)(N)H_(3)`
