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  Inorganic Chemistry

Group 5 Oxides :

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These elements form oxides of the type X2O3, X2O4 and X2O5 .

The acidic strength of oxides :

N2O < NO < N2O3 < N2O4 < N2O5 .

The decreasing order of stability of oxides of group 15 follows as,

P2O5 > As2O5 > Sb2O5 > Bi2O5

The nature of oxides of group 15 elements is as follows,

N2O3 and P2O3 (acidic) ; As2O3 and Sb2O3 (amphoteric);

Bi2O3 (basic)

 

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