Question

How is electrolysis is useful in the purification of metals and electrotyping? Explain.

Answer 1

1. The process of electrolytic refining of metals is used to extract impurities from crude metals.
2. Here in this process (electrolysis), a block of crude metal is used as an anode, a diluted salt of that metal is used as an electrolyte, and plates of the pure metal are used as cathode.
3. Thus, we can purify metals with the help of electrolysis.
4. Electroplating is a process that uses electric current to reduce dissolved metal ions by the use of electrolysis, to obtain the dissolved metal ions at the other electrode, mostly in the form of a uniform coating.
5. It is the process of plating one metal onto another by hydrolysis, most commonly for decorative purposes or to prevent corrosion of metals.