Correct answer is C) Non-metallic oxides are acidic in nature.
[1 Mark]
Non-metallic oxides are acidic in nature and metallic oxides are basic in nature. When a non-metallic oxide reacts with base, it will produce salt and water. CO2 is a non-metallic oxide of carbon.
CO2(g)+2NaOH(s)→H2O(l)+Na2CO3(aq)