Zinc can be coated on iron to produce galvanized iron but the reverse

1.	Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because (a) Zinc is lighter than iron (b) Zinc has lower melting point than iron (c) Zinc has lower negative electrode potential than iron(d) Zinc has higher negative electrode potential than iron
Answer» (d) Zinc has higher negative electrode potential than iron E⁰_zn+\|zn = – 0.76V and E⁰_Fe^2+\|Fe = 0.44V. Zinc has higher negative electrode potential than iron, iron cannot be coated on zinc.

Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because (a) Zinc is lighter than iron (b) Zinc has lower melting point than iron (c) Zinc has lower negative electrode potential than iron(d) Zinc has higher negative electrode potential than iron

Answer»

(d) Zinc has higher negative electrode potential than iron

E⁰_zn+|zn = – 0.76V and E⁰_Fe^2+|Fe = 0.44V.

Zinc has higher negative electrode potential than iron, iron cannot be coated on zinc.