Prasad did not paint his iron gate and so it got corroded. Iron gets rusted in presence of oxygen and moisture and large amount of iron gets wasted due to corrosion. Corrosion is a process in which metals react with compounds present in atmosphere to form surface compounds. (a) Justify: “Corrosion is an electrochemical phenomenon”. (b) How rusting of iron be prevented? (c) What happens to the metal which undergoes corrosion?
(a) electrons in presence of oxygen to form water. (b) It can be prevented by painting, oiling, greasing and galvanization. (c) The metal gets oxidised.
