(B) Galvanization is the process of applying a protective $Zn$ coating to iron or steel to prevent rusting. Because $Zn$ is more reactive than $Fe$,it

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(B) Galvanization is the process of applying a protective $Zn$ coating to iron or steel to prevent rusting. Because $Zn$ is more reactive than $Fe$,it gets oxidized first when it comes in contact with moisture,thereby acting as a sacrificial anode and protecting the iron surface from corrosion.