General Knowledge - Basic General Knowledge - Discussion

Zinc metal is used for galvanising iron because it is more reactive than iron. It reacts with air to form a hard layer of zinc oxide, which prevents air and moisture to come in contact with iron.

Galvanizing is the process of applying a protective zinc coating to iron.

The term is derived via French from the name of Italian scientist Luigi Galvani. Originally, galvanization was the administration of electric shocks, in the 19th century also termed Faradism.

This sense is the origin of the meaning of the metaphorical use of the verb galvanize, as in galvanize into action, or to stimulate a complacent person or group to take action. The term galvanization has largely come to be associated with zinc coatings, to the exclusion of other metals.

Galvanic paint, a precursor to hot-dip galvanization, was patented by Stanislas Sorel, of Paris, France in December, 1837. The earliest known example of galvanizing of iron is found on 17th century Indian armor in the Royal Armouries Museum collection.

Zinc prevents rusting of iron by process namely galvanization.

Iron is coated with zink to protect corrosion.

Coating iron and steel with zinc.

Galvanizing is a process of provinding a layer of zinc to steel to prevent corrosion and increase the life of steel. Galvanizing process also provides the good appearance to steel.

A coating of zinc is given to metals to prevent it from getting rusted. And this process of coating zinc on to other metals is called galvanisation.

Galvanising is a process of zinc coating on other metals in order to prevent corrosion.

How reactivity on metals help in electroplating and galvanising process?