Aluminium is a self-preserving metal, because

  • A

    It is not tarnished by air

  • B

    A thin film of basic carbonate on its surface

  • C

    A non-porous layer of oxide is formed on its surface

  • D

    It is not affected by salt water

Similar Questions

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

  • [IIT 2000]

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 $H_3BO_3$?