Question

Name the process of depositing a layer of Zinc on Iron. Give two examples of objects on which Zinc coating is done.

Answer 1

Zinc is a chemical element with atomic number 30 and the symbol Zn. At room temperature, zinc is a somewhat brittle metal with a silvery-greyish look when oxidation is eliminated. It is the first element in the periodic table's group 12 (IIB). Zinc is a bluish-white, glossy, diamagnetic metal with a dull polish in most typical commercial grades.

Complete step by step solution:
Galvanization is the process of coating steel or iron with a protective zinc coating to prevent corrosion. The most popular process is hot-dip galvanising, which involves immersing the components in molten zinc.
The underlying iron or steel is protected in several ways by galvanising.
When the zinc coating is intact, it prevents corrosive chemicals from accessing the steel or iron beneath.
Additional electroplating, such as a chromate conversion coating, may be added to the substrate material to give additional surface passivation.
The zinc functions as a sacrificial anode, sacrificing itself to preserve the underlying metal.
Protection can be maintained even if the underlying metal is exposed as long as there is zinc close enough to be electrically linked. Localized corrosion of the base metal can occur after all of the zinc in the immediate region has been consumed.
The technique of galvanization can keep an iron item from rusting.

Examples- To avoid corrosion, iron sheets used to make buckets and shelters are zinc-coated.

Note:
On the surface of a steel object, hot-dip galvanising deposits a thick, durable coating of zinc iron alloys. Electrogalvanizing is used to apply a thinner kind of galvanising to vehicle bodywork where extra ornamental paint coats will be applied. With the exception of high-strength steels (>1100 MPa), where hydrogen embrittlement can be a concern, the hot-dip process typically does not diminish strength on a quantifiable scale. This shortcoming has an impact on the production of wire rope and other highly strained goods.