p-Block elements form acidic, basic and amphoteric oxides. Explain each property by giving two examples and also write the reactions of these oxides with water.
The oxides of p-block elements show acidic, basic and amphoteric properties, due to the following factors:
Reaction with water
Boron Trioxide Orthoboric acid
is amphoteric in nature. It is insoluble in water but dissolves in alkalies and reacts with acids.
Aluminium trioxide Sodium meta aluminate
Aluminium Chloride
is as basic as due to its lower oxidation state (+1).