In which process is a protective zinc coating applied on iron to prevent it from rusting?

Options

A. Galvanisation
B. Annealing
C. Welding
D. Smelting

Answer

A

Explanation

Galvanisation is the process of applying a protective zinc coating to iron or steel, to prevent rusting Annealing is a heat treatment process that changes the physical and the chemical properties of a material to increase ductility and reduce the hardness to make it more workable.
Welding is a fabrication process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool, causing fusion.
Smelting is a process of applying heat to ore in order to extract a base metal.