Chapter 18, Problem 18.63SP

Interpretation Introduction

Interpretation:

Given oxides has to be arranged in order of increasing ionic character.

Concept Introduction:

Oxides can be classified into acidic, basic or amphoteric.

• Basic oxides are ionic formed by metal.  Water soluble basic oxide such as ${\text{Li}}_{\text{2}}\text{O}$ and ${\text{Na}}_{\text{2}}\text{O}$ reacts with water to gives ${\text{OH}}^{\text{-}}$ ions.
• Acidic oxides are covalent and they formed by non-metals.  Water soluble acid oxides such as ${\text{N}}_{\text{2}}{\text{O}}_{\text{5}}$ and ${\text{SO}}_{\text{3}}$ dissolved by reacts with water to gives ${\text{H}}^{\text{+}}$ ions.
• Amphoteric oxides act as both acids and bases and dissolves both strong acid and in strong base but insoluble in water.

Ionic compound: A compound which consist of anions and cations held together by ionic bond (electrical attraction of opposite charges).  An ionic character decreases from left to right and from top to bottom in the periodic table.