Question

Why are iron objects are electroplated

Answer 1

This is because iron is very reactive and when come in contact with air and moisture it rust and become light and may fall. This is also the reason the iron bridges are electroplated.
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These are electroplated to prevent rusting

Answer 2

Iron objects are electroplated to prevent it from rusting. Iron reacts with Atmospheric oxygen and results in rust. To prevent this reaction from taking place we coat it with another metal which does not react and rust. In this method iron can be prevented from rusting.
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