Question

metal oxide + arrow salt +water
a acid
b.base
c.salt
d.water​

Answer 1

A :- Acid

Metal Oxide + Acid → Salt + Water

• We chose Acid because 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. These oxides cannot be prepared by dehydrating the hydroxide at high temperature. The oxides of feebly acidic cations are more common.

Answer 2

Metal oxides react with acid to produce salt and water .

Metal oxide + Acid ➡ Salt + Water