Check sibling questions

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 .

Galvanisation of Iron - Teachoo.png

(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 .

Alloys are Homogenous mixtures - Teachoo.png


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

Stainless Steel and Steel _ Comparison - Teachoo.png

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo