Question

With tge help of an activity prove that metallic oxides are basic in nature.​

Answer 1

hey mate!

The oxide ions in a metal oxide generally react with water to form hydroxide ions which are basic in nature (OH-).

Here's a complete reaction example :

The oxide ion tends to react with water to form hydroxide ions.

generically O2- + H2O --> 2OH-

As an example, CaO + H2O ---> Ca(OH)2

Some other metal oxides (like ZnO and Al2O3) are basic but also acidic oxides:

ZnO + H2O + 2 OH- --> Zn(OH)42- in which reaction hydroxide is needed and not formed! This behavior is usually termed amphoteric

Answer 2

Just use the litmus paper. when you will use the Litmus Paper in metallic oxide it will turn red to blue which means it is basic in nature.