Chapter 8, Problem 8.15P

(a)

Interpretation Introduction

Interpretation:

The molecular class, geometry and bond angle of ${\text{AlH}}_{\text{4}}{}^{\text{-}}$ ion has to be given.

Concept Introduction:

Let A represent a central atom, X represent a bonded atom to the central atom and E represent the lone pair of electrons on the central atom.  Then, the center atom in a molecule can be classified as ${\text{AX}}_{\text{m}}{\text{E}}_{\text{n}}$.

(b)

Interpretation Introduction

Interpretation:

The molecular class, geometry and bond angle of ${\text{SbF}}_{\text{6}}{}^{\text{-}}$ has to be given.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The molecular class, geometry and bond angle of ${\text{BrF}}_{\text{4}}{}^{\text{-}}$ ion has to be given.

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

The molecular class, geometry and bond angle of ${\text{AsCl}}_{\text{4}}{}^{\text{+}}$ has to be given.

Concept Introduction:

Refer to part (a).