PLEASE ANSWER
Asked by Rishabh1 | 24th Jun, 2009, 10:55: PM
Expert Answer:
Those metallic oxides will be basic which dissolve in water to form alkalies like sodium oxide, potassium oxide.
Na2O + H2O 
2 NaOH
K2O + H2O 2 KOH
Some metallic oxides show properties of both acids and bases. These oxides are called amphoteric oxides. Example : Aluminium oxide
Answered by | 26th Jun, 2009, 09:37: AM
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