Question

Give reasons, why aluminum is used in :

(a) making alloys,

(b) Wrapping chocolates,

(c) Painting electric and telegraphic poles,

(d) In aluminiothermy,

(e) In making ships.

Answer 1

(a) Aluminium being strong, light and corrosion resistant metal is used for making alloy.
(b) Aluminium is light, malleable and does not rust so it is used for wrapping chocolates.
(c) To prevent them from rusting.
(d) It is used in aluminothermy as it is a good reducing agent.
(e) As aluminium forms a film of aluminium oxide, it protects the ships from corrosion. So it is used for making ships.