Consider the following reaction equation:
CaO + SiO\(_{2}\) ------> CaSiO\(_{3}\)
Silicon(IV) oxide is acting as

A.

a basic oxide

B.

a reducing agent

C.

an acidic oxide

D.

an oxidizing agent

Correct answer is C

Silicon dioxide is an acidic oxide. It will react with strong bases to form silicate salts, SiO\(_{2}\) is acidic oxide because Si is non-metal. Oxides of non-metals are acidic in nature.