Galvanisation: Protecting Iron from Rusting
Galvanisation is a process used to protect iron or steel from rusting (corrosion).
It involves coating the iron or steel surface with a thin layer of another metal. This layer acts as a barrier, preventing the corrosive elements (like oxygen and moisture) from reaching the iron.
Key Metal Used in Galvanisation
The specific metal used in the galvanisation process to coat iron is Zinc metal only. Zinc provides both a physical barrier and acts as a sacrificial anode, meaning it corrodes preferentially to protect the underlying iron.
Conclusion
Therefore, galvanisation protects iron from rusting by coating it with a thin layer of Zinc metal only.
Important Questions from Metals
Which of the following is NOT an alloy?
Why are aluminum items such as pressure cookers, saucepans, etc. anodized?
A. To increase their conductivity.
B. To increase their tensile strength.
C. To prevent them from rusting.
D. To make them lighter and shinier.
Which of the following statements is INCORRECT?
Which of the following is combined to form Solder?
Gold is mixed with copper ______.
