Chapter 7, Problem 24QAP

Interpretation Introduction

(a)

Interpretation:

The Lewis structure for the oxalate ion ${\text{C}}_{\text{2}}{\text{O}}_{\text{4}}^{\text{2-}}$, needs to be drawn based on the given skeleton structure.

Concept introduction:

• A Lewis dot structure depicts bonding between atoms in a molecule in terms of the valence electrons, bonding electron pairs as well as the lone pairs surrounding individual atoms.
• If a molecule can be represented by more than one Lewis structure then the contributing forms which represent electron delocalization are termed as resonance structures.

Interpretation Introduction

(b)

Interpretation:

Three other resonance structures for Oxalate ion ${\text{C}}_{\text{2}}{\text{O}}_{\text{4}}^{\text{2-}}$ need to be drawn.

Concept introduction:

• If a molecule can be represented by more than one Lewis structure then the contributing forms which represent electron delocalization are termed as resonance structures.

Interpretation Introduction

(c)

Interpretation:

An explanation must be provided if the depicted structure of the oxalate ion contributes to its resonance form.

Concept introduction:

• A Lewis dot structure depicts bonding between atoms in a molecule in terms of the valence electrons, bonding electron pairs as well as the lone pairs surrounding individual atoms.
• If a molecule can be represented by more than one Lewis structure then the contributing forms which represent electron delocalization are termed as resonance structures.