Question

Raju is a student of class VIII and is curious
to know the chemical nature of metals.
While testing the chemical nature of
metals, he noticed that a metal oxide reacts
with dilute solutions of both acids and
bases to produce hydrogen gas. This metal
oxide is
magnesium
copper
aluminium
sodium​

Answer 1

Explanation:

Oxides of metals are basic in nature whereas oxides of non-metals are acidic in nature.

Metal oxides are basic since they form a salt and water when they dissolve in water. Metal oxides contain OH

−

. Ions are hence basic in nature.

Non-metal oxides such as sulphur dioxide contain H

+

ions that dissolve in water to form acidic solutions.