Question

what is hybridization. why is it required?

Answer 1

Hybridization is the idea that atomic orbitals fuse to form newly hybridized orbitals,which in turn,influences molecular geometry and bonding properties.it is also an expansion of the valence bond theory. 

Answer 2

Explanation:

The main features of hybridization are as under :-

1. The number of hybrid orbitals is equal to the number of atomic orbital that get hybridised .

2. The hybridized orbitals are equivalent in energy and shape.

3. The hybrid orbitals and more effective in forming stable bonds than the pure atomic orbitals .

4. These hybrid orbitals are directed in space in some preferred direction to have minimum repulsion between electron pairs and thus a stable arrangement is obtained. Therefore , the type of hybridization indicates the geometry of the molecules .