Facts that Matter
— Chromium has a shiny appearance, does not corrode and is resistant to scratches. But, chromium is expensive and it is not economical to make the whole object out of chromium. So, the objects, such as taps, car parts, wheel rims etc. made from a cheaper metal and electroplated with chromium.
— Jewellery made of cheap metal is electroplated with silver or gold to appear as if made of silver or gold.
— Tin is less reactive than iron. So, iron cans used for food items are electroplated with tin to prevent spoilage from contact with iron.
— Iron used in bridges and automobiles is electroplated with a coating of zinc to protect it from corrosion and formation of rust.