Since hydroxide ion is the strongest base that can persist in water, the oxide ion reacts quantitatively with water to generate hydroxide ions. ... Metal oxides which exhibit this behavior are termed basic oxides because they act as bases. The oxides of nonacidic cations are so water reactive that they are seldom seen.

What makes an oxide basic?

What are Oxides? ... A basic oxide is an oxide which when combined with water gives off a base. When a substance reacts chemically, both as a base or acid it termed as an amphoteric solution. Neutral Oxide is one which neither has an acidic characteristic or a basic one.

Why oxides of metals are basic?

Metallic oxides are basic in nature because they react with dilute acids to form salt and water. Group 1 & 2 oxides are highly alkaline in nature that is why group 1 called alkaline metals and group 2 called Alkaline Earth metals.