Question

The shape of the molecule in which central atom is $s{p}^2$ hybridised is:

• A. linear
• B. tetrahedral
• C. triagonal planar
• D. pyramidal

Answer 1

The correct option is C triagonal planar

When one s and two p orbitals hybridise, three $s{p}^2$ hybrid orbitals are formed. These hybrid orbitals will be at maximum possible distance from each other, to minimise electronic repulsion. This is possible when they are at an angle of ${120}^o$ from each other.

Hence, the three $s{p}^2$ hybrid orbitals align themselves at angle of ${120}^o$ resulting in a triagonal planar structure.