Zinc can be coated on ironto produce galvanized iron but thereverse is not posible it is because

Zinc can be coated on ironto produce galvanized iron but thereverse is

1.	Zinc can be coated on ironto produce galvanized iron but thereverse is not posible it is because
Answer» zincis lighter than iron zinc has lowr melting point than iron zinc has lower negativ ELECTRODE point than iron zinc has higher negative electrode potential than iron SOLUTION :A metal with more negative electrode potential is more easily oxidised than a metawith LESS negative electrode potential thus zinc with `E^(@)=-0.76 V` is more easily oxidised by `O_(2)` and moisture of the ATMOSPHERE than iron with`E^(@)=-0.44 V` and thus protects iron from corrosionwith les -ve electrode potential cannot protect zinc with more ve electrode potential from CORROSION