Aluminium is a self-preserving metal, because
It is not tarnished by air
A thin film of basic carbonate on its surface
A non-porous layer of oxide is formed on its surface
It is not affected by salt water
Boron does not form $B^{3+}$ cation easily. it is due to
Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out in the presence of
Draw the structure of boric acid showing hydrogen bonding. Which species is present in water? What is the hybridizations of boron in this species?
In which of the following, a salt of the type $KMO_2$ is obtained?
Maximum number of atoms which are present in one plane of $H_3BO_3$?