Question

List four uses of electroplating, giving the reason for electroplating in each case.

Answer 1

Four uses of electroplating are:

1. Iron used to make bridges and automobiles is electroplated with zinc in order to prevent rusting.
2. Gold or silver is electroplated on jewellery made from a cheaper metal in order to make the jewellery look attractive.
3. Iron used to make food-storage utensils is electroplated with tin to prevent the food from getting spoiled by reacting with iron.
4. Chromium is a shiny metal that never corrodes and also resists scratches. It is electroplated on a cheaper metal like iron to make it corrosion and scratch-resistant. Chromium-plated iron is used for manufacturing car parts, wheel rims, taps, etc.