Chapter 18.9, Problem 18.10P

(a)

Interpretation Introduction

Interpretation:

Oxidation number of Oxygen in ${\text{Rb}}_{\text{2}}{\text{O}}_{\text{2}}$ has to be identified and whether the compound is oxide, a peroxide or a superoxide has to be given.

Concept Introduction:

• Heavier 1A and 2A metals forms either peroxides such as ${\text{Na}}_{\text{2}}{\text{O}}_{\text{2}}{\text{and BaO}}_{\text{2}}$ or super oxides such as ${\text{KO}}_{\text{2}}\text{,}{\text{RbO}}_{\text{2}}{\text{and CsO}}_{\text{2}}$.
• Under same conditions, lighter group 1A and 2A metals forms normal oxides such as ${\text{Li}}_2\text{O, MgO, CaO and SrO}\text{.}$

(b)

Interpretation Introduction

Interpretation:

Oxidation number of Oxygen in $\text{CaO}$ has to be identified and whether the compound is oxide, a peroxide or a superoxide has to be given.

Concept Introduction:

• Heavier 1A and 2A metals forms either peroxides such as ${\text{Na}}_{\text{2}}{\text{O}}_{\text{2}}{\text{and BaO}}_{\text{2}}$ or super oxides such as ${\text{KO}}_{\text{2}}\text{,}{\text{RbO}}_{\text{2}}{\text{and CsO}}_{\text{2}}$.
• Under same conditions, lighter group 1A and 2A metals forms normal oxides such as ${\text{Li}}_2\text{O, MgO, CaO and SrO}\text{.}$

(c)

Interpretation Introduction

Interpretation:

Oxidation number of Oxygen in ${\text{CsO}}_{\text{2}}$ has to be identified and whether the compound is oxide, a peroxide or a superoxide has to be given..

Concept Introduction:

• Heavier 1A and 2A metals forms either peroxides such as ${\text{Na}}_{\text{2}}{\text{O}}_{\text{2}}{\text{and BaO}}_{\text{2}}$ or super oxides such as ${\text{KO}}_{\text{2}}\text{,}{\text{RbO}}_{\text{2}}{\text{and CsO}}_{\text{2}}$.
• Under same conditions, lighter group 1A and 2A metals forms normal oxides such as ${\text{Li}}_2\text{O, MgO, CaO and SrO}\text{.}$

(d)

Interpretation Introduction

Interpretation:

Oxidation number of Oxygen in ${\text{SrO}}_{\text{2}}$ has to be identified and whether the compound is oxide, a peroxide or a superoxide has to be given..

Concept Introduction:

• Heavier 1A and 2A metals forms either peroxides such as ${\text{Na}}_{\text{2}}{\text{O}}_{\text{2}}{\text{and BaO}}_{\text{2}}$ or super oxides such as ${\text{KO}}_{\text{2}}\text{,}{\text{RbO}}_{\text{2}}{\text{and CsO}}_{\text{2}}$.
• Under same conditions, lighter group 1A and 2A metals forms normal oxides such as ${\text{Li}}_2\text{O, MgO, CaO and SrO}\text{.}$

(e)

Interpretation Introduction

Interpretation:

Oxidation number of Oxygen in ${\text{CO}}_{\text{2}}$ has to be identified and whether the compound is oxide, a peroxide or a superoxide has to be given..

Concept Introduction:

• Heavier 1A and 2A metals forms either peroxides such as ${\text{Na}}_{\text{2}}{\text{O}}_{\text{2}}{\text{and BaO}}_{\text{2}}$ or super oxides such as ${\text{KO}}_{\text{2}}\text{,}{\text{RbO}}_{\text{2}}{\text{and CsO}}_{\text{2}}$.
• Under same conditions, lighter group 1A and 2A metals forms normal oxides such as ${\text{Li}}_2\text{O, MgO, CaO and SrO}\text{.}$