General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 22)
22.
Galvanised iron sheets have a coating of
Discussion:
32 comments Page 3 of 4.
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.
Kd6178 said:
1 decade ago
Galvanization forms a barrier of zinc and prevents the contact of iron with air or moisture.
Naseer said:
1 decade ago
Galvanization (or galvanisation) is the process of applying a protective zinc coating to steel or iron, in order to prevent rusting.
Kriti said:
1 decade ago
Zinc is highly electro-negative than iron, so it it used to protect the rusting of iron. Which is nothing but galvanization.
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.
Prabhanjan said:
1 decade ago
Zinc is corosion resistent so applied over iron to protect it from corosion.
Anmol said:
1 decade ago
To protect iron from getting rusted, the coat of zinc is applied on it. This process is called galvanization.
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.
Manoj Kumar yadav said:
1 decade ago
Zn is better reducing agent than ordinary hydrogen. Hence pure Zn is not effected by moisture. So as it protect Fe from corrosion.
Veena said:
1 decade ago
Iron is positively charged i.e. +2 and tin is negatively charged.
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