NATURE OF OXIDES

 

Image Source =  https://pixabay.com/

-In given metal oxides as polarization of oxide increases basis character of metal oxide decreases.

                                            Oxides

Ampnotenic oxides-Those oxides are formed by amphoteric metal.Be,Al,Sn,Zn.Other amphoteric                                         metal oxides are Cr2O3,TiO2,V2O5,Mno2 etc.

Acidic Oxides-These oxides are formed by transition metals.In such oxides oxidation states of                                          transition metal is found to be +5,+6,+7,+8 eg.

-In given metal oxide as polarisation of oxide anion increases basis nature of oxides decreases.

Acidic Character-For fixed oxidation state as non-metallic character of element decreases acidic                                       nature of oxides decreases.

Acidic Character-For a given element oxides as oxidation state increases in given oxides acidic                                        character of oxide increase.

                 Nature Of Oxides Of Transition Metals

Acid Anhydride-Those Aodic oxides in which central atom is present in one of its common                                           oxidation state.When they are dissolved in to water oxyacid are formed in non-                                  redox.

Mixed Acid Anhydride-In this acidic oxide central atom is present in its uncommon oxidation                                                 state on dissolving them in to water they undergo dispronatatio.