The dand fblock elements - Result Question 61
####61. The most durable metal plating on iron to protect against corrosion is
[1994]
(a) Nickel plating
(b) Tin plating
(c) Copper plating
(d) Zinc plating
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Solution:
- (d) Galvanisation is the process of deposition of zinc metal on the surface of $Fe$ to prevent it from rusting. Zinc forms a protective layer of basic carbonate $(ZnCO_3.$. $.Zn(OH)_2)$ on it.
