Chapter 13, Problem 13B.7AE

(i)

Interpretation Introduction

Interpretation:

The symmetry number of $\text{CO}$ has to be stated.

Concept introduction:

A symmetry operation is defined as an action on an object to reproduce an arrangement that is identical to its original spatial arrangement.  The group of symmetry operations of which at least one point is kept fixed is called point group.  The symmetry operations can be identity, rotation, reflection, inversion and improper rotation.

(ii)

Interpretation Introduction

Interpretation:

The symmetry number of ${\text{O}}_2$ has to be stated.

Concept introduction:

The same concept introduction as in subpart (i).

(iii)

Interpretation Introduction

Interpretation:

The symmetry number of ${\text{H}}_2\text{S}$ has to be stated.

Concept introduction:

The same concept introduction as in subpart (i).

(iv)

Interpretation Introduction

Interpretation:

The symmetry number of ${\text{SiH}}_4$ has to be stated.

Concept introduction:

The same concept introduction as in subpart (i).

(v)

Interpretation Introduction

Interpretation:

The symmetry number of ${\text{CHCl}}_3$ has to be stated.

Concept introduction:

The same concept introduction as in subpart (i).