The nodal plane in the `pi` -bond of ethene is located in :

Options

A. the molecular plane
B. a plane parallel to the molecular plane
C. a plane perpendicular to the molecular plane which bisects the carbon`-` carbon `sigma-`bond at right angle
D. a plane perpendicular to the molecular plane which contains the carbon`-`carbon `sigma-`bond.

Answer

A

Explanation

`pi-` bond is formed by sideways overlapping of two `p-` orbitals of two `C` atoms. These `P-`orbitals are perpendicular to the plane containing the ethane molecule, therefore, molecular plane does not have any `pi-`electron density and nodal plane lies along the molecular plane for `pi-`electrons.