The most important resonance structure of CO 2 should be identified from the given structures. Concept Introduction: Sometimes the chemical bonding of a molecule cannot be represented using a single Lewis structure. In these cases, the chemical bonding are described by delocalization of electrons and is known as resonance. A formal charge (FC) is the charge assigned to an atom in a molecule, irrespective of relative electronegativity by thinking that electrons in all chemical bonds are shared equally among atoms. This method is used to identify the most probable Lewis structures if more than one possibility exists for a compound. The Lewis structure of a molecule with zero formal charge for all atoms is more important than molecules having nonzero formal charge.

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Chapter 6, Problem 6.79QP

Interpretation Introduction

Interpretation: The most important resonance structure of CO2 should be identified from the given structures.

Concept Introduction:

Sometimes the chemical bonding of a molecule cannot be represented using a single Lewis structure. In these cases, the chemical bonding are described by delocalization of electrons and is known as resonance.

A formal charge (FC) is the charge assigned to an atom in a molecule, irrespective of relative electronegativity by thinking that electrons in all chemical bonds are shared equally among atoms.

This method is used to identify the most probable Lewis structures if more than one possibility exists for a compound.

The Lewis structure of a molecule with zero formal charge for all atoms is more important than molecules having nonzero formal charge.

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