Question

Why pi bond is formed by lateral overlapping of pure orbitals?why not hybrid orbitals?

Answer 1

Answer:

A pi bond is formed by collateral or sidewise overlapping of atomic orbitals. Due to the less overlap of atomic orbitals, the bond involves less evolution of energy than the sigma bond. In the case of a pi bond, the electron density is higher above and below the internuclear axis and not on the nuclear axis.