Question

define the meaning of electrolysis and electroplating

Answer 1

1.Electrolysis- In chemistry and manufacturing, electrolysis is a technique that uses a direct electric current (DC) to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell.
2.Electroplating-Electroplating is a process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode.

Answer 2

Answer:

Answer :-

It is a process in which ionic substances ( they are charged particle) are decomposed into the simpler substances when an electric current is pass through it.

Example :- Sodium (Na), magnesium (Mg) and calcium (Ca) are obtain by electrolysis of their molten chlorides. The metals are deposited at the cathode ( they are negatively charged ion ) whereas chlorine is liberated at the anode ( they are positively charged ion ).

At cathode :- Na^+ + e^- --> Na

At anode :- 2Cl^- --> Cl2 + 2e^-

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