Interaction of acidic oxides
with water
Oxides
• Oxygen can react with metals and non metals to form compounds which contain
oxygen and another element of metal or
non-metal.
• An oxide is a chemical compound that
contains at least one oxygen atom and
one other element.
Сlassification of oxides
• Metallic Oxides are made of metal and
oxygen. These are generally found in
nature as minerals. Examples of metallic
oxide – CaO, MgO, Fe3O4, BaO, ZnO etc.
• Basic Oxide – If an oxide reacts with
water and forms a base is called basic
oxide. Thus, basic oxide reacting with
water gives a base.
Magnesium oxide
• 2Mg+O2→2MgO
• MgO+H2O→Mg(OH)2
Acidic Oxides
• Non - Metallic Oxides are formed by
non - metal and oxygen. These are
generally found in nature as gases such
as carbon dioxide. These are formed by
the oxidation of non - metals.
• Acidic Oxides - If an oxide reacts with
water and forms an acid is called acidic
oxide. Examples of acidic Oxides – SO2,
CO2, SO3 etc
• SO3 + H2O → H2SO4
• CO2 + H2O →
• SO2 + H2O →
• P2O5 + H2O →
• HPO3 + H2O →