Classify the following oxides as acidic, basic, amphoteric, or neutral: (a) \(\mathrm{CO}_{2},\) (b) \(\mathrm{K}_{2} \mathrm{O},\) (c) \(\mathrm{CaO}\), (d) \(\mathrm{N}_{2} \mathrm{O}_{5}\) (e) CO, (f) \(\mathrm{NO}\) (g) \(\mathrm{SnO}_{2}\), (h) \(\mathrm{SO}_{3}\), (i) \(\mathrm{Al}_{2} \mathrm{O}_{3},(\mathrm{j}) \mathrm{BaO}\)

The oxides can be classified as follows: (a) \(\mathrm{CO}_{2}\): Carbon Dioxide is a non-metal oxide and hence it is acidic in nature.(b) \(\mathrm{K}_{2} \mathrm{O}\): Potassium Oxide is a metallic oxide, thus it is basic in nature. (c) \(\mathrm{CaO}\): Calcium Oxide is a metallic oxide and hence is basic in nature. (d) \(\mathrm{N}_{2} \mathrm{O}_{5}\): Nitrogen Pentoxide is a non-metal oxide, which is acidic in nature. (e) CO: Carbon Monoxide is a neutral oxide. (f) \(\mathrm{NO}\): Nitric Oxide is a neutral oxide. (g) \(\mathrm{SnO}_{2}\): Tin Dioxide is amphoteric because lead is a metalloid. (h) \(\mathrm{SO}_{3}\): Sulfur Trioxide is a non-metal oxide, making it acidic in nature. (i) \(\mathrm{Al}_{2} \mathrm{O}_{3}\): Aluminium Oxide is amphoteric in nature because aluminium forms a weak base and a weak acid. (j) \(\mathrm{BaO}\): Barium Oxide is a metallic oxide, thus is basic in nature.