Question

Why are metal oxides base and non-metallic oxides acid?

please use organic chemistry's knowledge.

Answer 1

Generally metals are found to be in the extreme left hand side of the periodic table and are called alkali metals and alkaline earth metals which makes their oxides basic and on the other hand non-metallic oxides acidic.

Similarly in organic chemistry,

In case of DNA or RNA the purine or pyrimidine bases which are attached to sugar on one side and phosphate on the other side makes an arrangement in which non-metals are attached in the rings of bases as a result of conjugate part of acids.

Oxides, such as iron (III) oxide (or rust, which consists of hydrated iron (III) oxides Fe₂O₃·nH₂O and iron (III) oxide-hydroxide FeO(OH), Fe(OH)₃), form when oxygen combines with iron.

Metal oxides can be reduced by organic compounds. This redox process is the basis for many important transformations in chemistry, such as the detoxification of drugs by the P450 enzymes and the production of ethylene oxide, which is converted to antifreeze. In such systems the metal center transfers an oxide ligand to the organic compound, followed by the regeneration of the metal oxide, often by oxygen in air.