Question

At ordinary temperature the surface of
metals such as magnesium, aluminium, zinc,
etc. is covered with a thin layer. What is the
composition of this layer? State its importance.
11.​

Answer 1

At ordinary temperatures the surfaces of metals like Magnesium, Aluminium and Zinc are covered with a thin layer. This layer is important because it prevents the further oxidation of the metal and helps in protecting the metal from getting tarnished.