Among the following oxides which is least acidic
Al2O3
B2O3
CO2
NO2
More the metallic nature, lesser would be acidic character of oxide. Aluminium is metallic in nature while B, C and N are non - metals
(a) Classify following oxides as neutral, acidic, basic or amphoteric:
CO,B2O3,SiO2,CO2,Al2O3,PbO2,Tl2O3
(b)Write suitable chemical equations to show their nature.