Chapter 18, Problem 18.12QE

(a)

Interpretation Introduction

Interpretation:

Oxidation numbers of all atoms in ${\text{Br}}_{\text{2}}$ has to be assigned.

Concept Introduction:

The degree of oxidation of an atom in a compound is referred as the oxidation number or oxidation state.

(b)

Interpretation Introduction

Interpretation:

Oxidation numbers of all atoms in ${\text{CO}}_{\text{3}}^{\text{2-}}$ has to be assigned.

Concept Introduction:

Refer to (a)

(c)

Interpretation Introduction

Interpretation:

Oxidation numbers of all atoms in ${\text{CO}}_{\text{2}}$ has to be assigned.

Concept Introduction:

Refer to (a)