Chapter 8, Problem 142AE

Interpretation Introduction

Interpretation: The observation that the $\text{N}-\text{N}$ bond length in ${\text{N}}_{\text{2}}\text{O}$ is $\text{112}\text{pm}$ and that the $\text{N}-\text{O}$ bond length is $\text{119}\text{pm}$ to be explained. The elimination of any resonance structure of ${\text{N}}_{\text{2}}\text{O}$ on the basis of formal charge is to be identified. The consistency of this elimination is to be checked with the given observation.

Concept introduction: The Lewis structure is also known as dot structure. This structure depicts the bonding between atoms and the lone pairs of electrons if exists.

Formal charge is a charge given to an atom with assumption that electrons are shared equally between atoms in all chemical bonds irrespective of their electronegativity.

To determine: The rationalization of the observation that the $\text{N}-\text{N}$ bond length in ${\text{N}}_{\text{2}}\text{O}$ is $\text{112}\text{pm}$ and that the $\text{N}-\text{O}$ bond length is $\text{119}\text{pm}$; if any of the resonance structure of ${\text{N}}_{\text{2}}\text{O}$ can be eliminated on the basis of formal charge; if this elimination is consistent with the given observation.