Question

How can I relate molecular geometry with the type of hybridisation?

Answer 1

`sp`, linear; `sp^2` trigonal planar; `sp^3` tetrahedral.

Explanation:

Please note that hybridization does not automatically determine molecular geometry. Water is a bent molecule, however, the 2 bonding, and 2 non-bonding orbitals about the oxygen atom are described as `sp^3` hybrid orbitals. As you know, methane, `CH_4`, is considered `sp^3` hybridized, and the `4` `C-H` bonds are arranged in a tetrahedron about the central carbon.