Question

Write a short note on galvanisation of iron.

Answer 1

Galvanization - The process of depositing a thin layer of zinc on iron is called galvanization.

Process of Galvanization -

• Iron can be protected from corrosion by coating it with a thin layer of zinc$\left(\mathrm{Zn}\right)$.
• Zinc is more electropositive than iron.
• So as long as zinc is there on any part of galvanised iron, it does not corrode.
• Galvanisation is done by the following method -
• By spraying molten zinc on the iron surface.
• By dipping the iron sheets or objects into the molten zinc.
• Galvanised iron is used for making roof sheets, water tanks, buckets, etc.