General Knowledge - General Science - Discussion

Discussion Forum : General Science - Elements and Metals (Q.No. 22)
22.
Galvanised iron sheets have a coating of
lead
chromium
zinc
tin
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
32 comments Page 1 of 4.

B sree mohanesh said:   7 years ago
It is zinc because Galvanizing is a type of technique to prevent corrosion, As iron is more prone to rusting (when exposed to atmospheric air), Zinc, on the other hand, is resistant to corrosion. So, in order to protect the galvanised iron sheets from rusting, a layer of Zinc is being applied on top of it & mechanical industries used most commonly this process some time they called plateauing or blackodizing and galvanizing main purpose of this process to protect the vessel/job from rusting/corrosion zinc and other non famous materials are there but zinc has the best property of corrosion resistance as compared to other has more advantages.

Kirankumar said:   8 years ago
In mechanical industries used most commonly this process some time they called platening or blackodizing and galvanizing main perpose of this process to protect the vessel/job from rusting/corrosion zing and other non farous materials are there but zink has a best property of corrosion resistance as compared to other has more advantages.

Gurbir Singh said:   1 decade ago
Galvanization is the process of applying a protective zinc coating to steel or iron, in order to prevent rusting. The term is derived from the name of Italian scientist Luigi Galvani. Although galvanization can be done with electrochemical and electrodeposition processes, the most common method in current use is hot-dip galvanization.

Bijaya Lakshmi Sarma said:   7 years ago
As iron is more prone to rusting (when exposed to atmospheric air), Zinc, on the other hand, is resistant to corrosion. So, in order to protect the the galvanised iron sheets from rusting, a layer of Zinc is being applied on top of it.

Shyam said:   7 years ago
Galvanization or galvanizing is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are submerged in a bath of molten zinc.
(3)

Tin said:   1 decade ago
Zinc is used in galvanisation as a coating on other metals which get corroded easily; as zinc is resistant to corrosion it is coated on metals to make it resistant to corrosion.

Sriram said:   1 decade ago
Zn is corrosion resistant. So it won't get rusted and it protects the underneath iron form rusting by cutting its exposure to moisture and atmospheric air.

Ajeet kumar yadav said:   1 decade ago
Zinc is too much electronegative that of iron so we use it in Galvanization. It is corrosion resistant and do not get reaction with iron in any presence.

Neeraj said:   1 decade ago
describes metal, or something made of metal, that is covered with a thin protective layer of zinc
galvanized iron/steel
galvanized nails/rivets

Rakesh Goel said:   1 decade ago
Actually zinc is a good reducing agent and not corrosion resistant. It will take the corrosion of iron as it get corroded fastly then iron.


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