The D And F Block Elements Ques 58

58. 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:

  1. (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.