The process of zinc plating on iron sheet is known as _______.
Annealing is a heat treatment that alters the microstructure of a material causing changes in properties such as strength, hardness and ductility.
Roasting consists of thermal gas-solid reactions, which can include oxidation, reduction, chlorination, sulfation, and pyrohydrolysis. In roasting, the ore or the ore concentrate is treated with very hot air. This process is generally applied to sulphide ores.
Smelting is a process of applying heat to ore in order to extract a base metal
Hence, the process of zinc plating on the iron sheet is known as galvanisation.
Hence, the correct option is C