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Sunday, May 8, 2022

Nature of Transition Metals Oxides:

The oxides of  transition metals will be acidic , basic or amphoteric  as camparative with its oxidation state. The follow following trends.

Trends (1): The higher oxidation state of the central metal atom , the more covalent character  and oxide will be more acidic in nature.

Trends (2): The Lower oxidation state of the central metal atom , the more ionic character and oxide will be more basic in nature.

Trends (3): The moderate oxidation of central metal atom oxide will be amphoteric in Nature .


       Oxidation State

Nature of Oxides

              +1 , +2 , +3

Basic ,Except Cr2O3

                        +4

Amphoteric e.g. MnO2

                +5, +6, +7

Acidic,V2O5,CrO3,MoO3,Mn2O7,OsO4


Example of oxides of (Mn):

Oxides

Oxidation state

Nature

MnO

+2

Basic

MnO2

+4

Amphoteric

Mn2O7

+7

Acidic


Example of oxides of (Cr):

Oxides

Oxidation state

Nature

CrO

+2

Basic

Cr2O3

+3

Amphoteric

CrO3

+6

Acidic



Related Questions:


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