In which process is a protective zinc coating applied on iron to prevent it from rusting?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Galvanization.
| Galvanization is the process of applying a protective layer of zinc to a metal. It is a very common method of preventing the rusting of iron. This can be done by dipping the metal to be protected in hot, molten zinc or by the process of electroplating | |
| Annealing | Annealing in metallurgy and materials science is a heat treatment that alters the physical properties (and sometimes chemical properties) of a material to increase its ductility (ability to be shaped without breaking) and reduce its hardness. |
| Smelting | Smelting is a metallurgy technique to extract base metals from their ores with the help of heat and a chemical reducing agent. |
| Welding | Welding is a process in which material of a similar type is joined through the formation of primary chemical bonds under the controlled action of heat and pressure. |