Zine can be coated on iron to produce galvanize3d iron but the reverse is not possible it is because

Options

A. Zinc has higher negative electrode potential than iron
B. Zinc is lighter than iron
C. Zinc has lower melting point than iron
D. Zinc has lower negative electrode potential than iron

Answer

A

Explanation

`E^(@)Zn^(+2)//Zn=-0.76V`
`E^(@)Fe^(+2)//Fe=-0.44V`
Zn has higher negative SRP (Standard reduction potential) so it work as anode and protect iron to make iron as cathode.