It decreases rusting but doesn't totally prevent it.
Usually zinc because itis low cost, easy to cover the iron with, and prevents rusting
Iron can be coated with copper, but it is 3 times the cost
You don't want stuff falling off your roof, so you don't want the nails to rust. Zinc, unlike other metals, will not rust, so you wrap the nail with a coat of zinc to prevent rusting.
The easiest method to prevent iron from rusting is just to paint it. You could also coat it with plastic, dip it in molten zinc (this is called galvanizing), or formulate the iron into a metal alloy containing at least 11 percent chromium (this is stainless steel), depending on how ambitious you want to be.
Zinc has a greater resistance to corrosion than iron does, however it will still eventually corrode away, leaving the iron surface exposed. Its main purpose is to prolong the resistance of iron by rusting instead of it.
to prevent rusting of the iron
zinc prevents rusting of iron by the process galvanisation
Usually zinc because itis low cost, easy to cover the iron with, and prevents rusting
It is a chemical process.
Galvanization is a process of applying a protective zinc coating to steel of iron to prevent it from rusting
Prevent iron from making contact with oxygen. This can be done with paint, a coating such as zinc or use of an oil/grease layer.
Iron can be coated with copper, but it is 3 times the cost
Coating prevent the iron from contacting air and moisture. So it prevents iron from rusting.
Zinc doesn't rust; zinc protect iron (and alloys) from rusting.
In current use, the term refers to the coating of steel or iron with zinc. This is done to prevent rusting of the ferrous item.
Sort of. Galvanization refers to the process of applying a coating of zinc to either steel or iron in order to prevent rusting. So, it isn't really the zinc that is galvanizes, per se, but zinc is the only thing used to galvanize the steel or the iron.
By preventing rusting of iron in bus not being sarcastic at all