Chapter F, Problem K.1E

(a)

Interpretation Introduction

Interpretation:

Oxidation number of zinc in ${\text{Zn(OH)}}_{\text{4}}{}^{2-}$ has to be found.

Concept Introduction:

Oxidation state of a species is the one that has a specified oxidation number.  Increase in oxidation number corresponds to oxidation while decrease in oxidation number corresponds to reduction.  Rules for assigning oxidation number for an element is given as follows;

• The oxidation number is zero for the element that is present in uncombined state.
• Sum of the oxidation number of the atoms that is present in it is equal to the charge on the species.
• Oxidation number of the element is the charge that is possessed when the more electronegative atom is imagined to be an ion.

(b)

Interpretation Introduction

Interpretation:

Oxidation number of palladium in ${\text{PdCl}}_{\text{4}}{}^{2-}$ has to be found.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

Oxidation number of uranium in ${\text{UO}}_{\text{2}}{}^{\text{2+}}$ has to be found.

Concept Introduction:

Refer part (a).

(d)

Interpretation Introduction

Interpretation:

Oxidation number of silicon in ${\text{SiF}}_{\text{6}}{}^{2-}$ has to be found.

Concept Introduction:

Refer part (a).

(e)

Interpretation Introduction

Interpretation:

Oxidation number of iodine in ${\text{IO}}^{-}$ has to be found.

Concept Introduction:

Refer part (a).