Question

Theory to show that metal oxides are basic in nature during magnesium

Answer 1

Answer:

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.

Explanation: