Chapter 5, Problem 5.9YT

Interpretation Introduction

Interpretation:

Using Lewis structure and VSEPR theory, the molecular geometry of ${\text{C}}_2{\text{H}}_2$ is to be predicted.

Concept introduction:

The VSEPR(valence shell electron pair repulsion) theory is helpful in predicting the shapes of molecules from their Lewis structures.

The electron geometries of a molecule are determined on the basis of the total number of electron groups, the number of bonding groups, and the number of lone pairs.

To determine the molecular geometry of the molecule, the Lewis structure is drawn and the electron groups are counted. On the basis of bonding groups, the molecular geometry is predicted.