Question

Draw the diagram of the apparatus used in electroplating.

Answer 1

Electroplating is a technique used to coat a coat metal on metal to protect the base metal against corrosion. Electroplating is the most sophisticated method to protect the base metal form the corrosive environment.

Complete answer:
- In the question it is asked to draw the diagram of the apparatus used in the electroplating process.
- In the electroplating process, cathode is the base metal and anode is the coat metal plate and the electrolyte is the salt solution of coat metal.
- Both the electrodes are dipped in a vessel having the salt solution of coat metal.
- When a certain amount of direct current is passed through the salt solution the coat metal ions will move towards the cathode and a thin layer of coat metal is going to form on the surface of the base metal.
- The diagram which explains the electroplating process is as follows.

- Coat metal and different electrolytes used in electroplating process are as given in the following table

Coating metal	Electrolyte
Silver	Silver thiocyanate
Copper	Copper sulphate
Nickel	Nickel sulphate
Chromium	Chromic acid
Gold	Aurum chloride

Note:
Electroplating processes can be used to coat both metals (like Fe, Cu, steel etc.) and nonmetals (like plastics, wood, glass etc.). This method is very easy to handle and now a day’s various utensils are getting coated by using this method. This method is called corrosion prevention or control method used in industries also.