Chapter 14, Problem 14.13P

(a)

Interpretation Introduction

Interpretation:

The oxide and fluoride of element $\text{E}$ is ${\text{E}}_{\text{2}}{\text{O}}_{\text{3}}$ and ${\text{EF}}_{\text{3}}$ from this the group of that present in $\text{E}$ in the periodic table has to be given.

Concept Introduction:

Oxidation state:

The number of electrons lost or gain from an atom in the formation of molecule is known as oxidation number.

(b)

Interpretation Introduction

Interpretation:

The oxide and fluoride of element $\text{E}$ is ${\text{E}}_{\text{2}}{\text{O}}_{\text{3}}$ and ${\text{EF}}_{\text{3}}$ from this the group of that present in $\text{E}$ in the periodic table has to be given.

Concept Introduction:

Oxidation state:

The properties of the oxide and the fluoride of element $\text{E}$ based on its group has to be given.