Reaction of non-metallic oxides with water
This is a type of metathesis reaction in which oxidation number remains unchanged. Non-metallic oxides react with water to give corresponding acids.
SO3+ H2O gives H2SO4.
Elements like C,N,O,P,S,Cl, Br, I are non-metals. Theie oxides are acidic oxides, because their oxides produce acids when they react with water. These are therefore called acidic anhydride.When these react with water they give back same acid from which it is produced. The following table gives a list of some common non-mettalic oxides and corresponding acids.
Non mettalic oxide Acid
- CO2 H2CO3
-
N2O3 HNO2
-
SO2 H2SO3
-
SO3 H2 SO4
-
P2O 5 H3PO 4
-
P2O3 H3PO3
-
NO2 HNO2+ HNO3
-
As2O3 H3AsO3
-
As2O5 H3 AsO 4
-
N2O5 HNO3
-
Br2O HOBr
- Cl 2O HOCl
- Cl2O3 HCl20
- Cl2O5 HCl30
- Cl2O 7 HCl 40
- ClO 2 HClO2 + HClO3
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