Chapter 9, Problem 31E

Interpretation Introduction

Interpretation: The reason for all the six atoms in ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}$ to lie in the same plane is to be stated.

Concept introduction: When the atomic orbitals overlap with each other in the region where density of electrons is high, then molecular orbitals are formed. Overlap of the atomic orbitals determines the efficiency of the interaction between the atomic orbitals.

Energy of bonding molecular orbitals is less than the nonbonding molecular orbitals.

To determine: The reason for all the six atoms in ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}$ to lie in the same plane.