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10
CH1012
1A OXIDES
All the 1A oxides are basic and
react with water as follows:
Li2O + H2O ® 2LiOH
Li2O + H2O ® 2LiOH
Na2O2 + 2H2O ® 2NaOH + H2O2
2MO2 + 2H2O ® 2MOH + H2O2 + O2
• the hydroxides
are all soluble in water
(LiOH is not very soluble as there is some
covalency in the bonding).
(LiOH is not very soluble as there is some
covalency in the bonding).
• The name alkali metals reflects the
basicity of these oxides.
basicity of these oxides.