Answer:
Iron gets easily rusted in the
presence of moist air. Formation of rust \[(F{{e}_{2}}{{O}_{3}}.x\,{{H}_{2}}O)\]
is a redox reaction in which Fe is oxidised to \[F{{e}^{3+}}\] ions. Since
zinc is more reactive than iron (placed below iron in the activity series), it
is oxidised to\[Z{{n}^{2+}}\] ions instead of iron when coated over the surface
of iron. Thus, zinc takes part in the redox reaction while surface of iron
remains intact.
You need to login to perform this action.
You will be redirected in
3 sec
