Question

How will you show with an example that metal oxides are basic in nature?

Answer 1

Metal oxides are basic in nature because they react with water to form strong bases while non metallic oxides react with water to form acids.

Answer 2

when metallic oxides react with water they form metallic hydroxides which are basic in nature.to show that these are basic in nature,we should conduct a litmus paper test.in this experiment,we will observe that red litmus turns blue on coming in contact with them.this shows that metallic oxides are basic in nature.
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