State two ways to prevent the rusting of iron.


Rusting of iron can be prevented by :

(1) Galvanization

  • In galvanisation, a sacrificial coating of zinc is applied on iron and steel
  • Since Zn is more reactive than Iron, the Zn coating reacts with the surroundings, leaving the Iron untouched.  

It prevents steel and iron from rusting .


(2) Alloying

An alloy is a homogeneous mixture of 2 or more metals. In alloying ,a metal is mixed with some metal or nonmetal. This changes the properties of the metal .


When iron is mixed with Nickel and chromium ,we get stainless steel .This prevents corrosion as iron rusts but stainless steel does not.

  1. Class 10
  2. Chapter 3 Class 10 - Metals and Non-Metals (Term 1)

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo