Chapter 8, Problem 8.57P

(a)

Interpretation Introduction

Interpretation:

The geometry ${\text{POF}}_{\text{3}}$ has to be given.

Concept Introduction:

The steric number is a sum of the number of ligands and lone pairs surrounding the central atom.

  $\text{steric}\text{number}\text{=(m+n)}$

where m is the number of ligands and n is the number of lone pairs.

(b)

Interpretation Introduction

Interpretation:

The geometry of $\text{POCl}$ has to be given.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The geometry of ${\text{PH}}_{\text{2}}{}^{\text{-}}$ has to be given

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

The geometry of ${\text{PCl}}_{\text{4}}{}^{\text{+}}$ has to be given

Concept Introduction:

Refer to part (a).