Question

Describe electroplating with examples.

Answer 1

Electroplating is a method which uses electrolysis to deposit a layer of one metal on another metal. The object to be coated is made the cathode and the metal to be deposited is made the anode. On the application of electric current, the metals in the ionic form move from the anode and get deposited as a layer on the cathode object.

Examples:

1. Zinc and chromium are commonly used metals in plating steel and iron in order to protect from corrosion, wear and rust to the metal.
2. Gold metal is used to electroplate metals like copper or silver for ornamental or decorative purposes.