Chapter 3, Problem 51QRT

(a)

Interpretation Introduction

Interpretation:

The oxidation state for sulfur atom in the given ${\text{H}}_{\text{2}}\text{S}$ species has to be determined.

Concept introduction:

Oxidation number:

The oxidation number of an element is zero. The oxidation number of a monoatomic ion equals its charge.

The oxidation number is zero for the summation of the oxidation numbers complete atoms in a complete formula.

The charge on the ion is equal to the summation of the oxidation numbers of complete atoms in poly atomic ion.

The oxidation state of alkali metal $(\text{Li, Na, K, Rb, Cs})$ is $+1$, and alkaline earth metal is $\text{(Be, Mg, Ca, Sr, Ba)}$ is $+2$.

The oxidation state of hydrogen is $+1$ (except in bonding with metals), the oxidation state of oxygen is $-2$.

(b)

Interpretation Introduction

Interpretation:

The oxidation state for sulfur atom in the given ${\text{S}}_{\text{8}}$ species has to be determined.

Concept introduction:

Refer to part (a)

(c)

Interpretation Introduction

Interpretation:

The oxidation state for sulfur atom in the given ${\text{SCl}}_{\text{2}}$ species has to be determined.

Concept introduction:

Refer to part (a)

(d)

Interpretation Introduction

Interpretation:

The oxidation state for sulfur atom in the given ${\text{SO}}_3^{2-}$ species has to be determined.

Concept introduction:

Refer to part (a)

(e)

Interpretation Introduction

Interpretation:

The oxidation state for sulfur atom in the given ${\text{K}}_{\text{2}}{\text{SO}}_4$ species has to be determined.

Concept introduction:

Refer to part (a)