28). The electrochemical changes in which electricity from outside Source is used to carry out a reaction is called :-
a). electiorefining
b). electroplating
c). electrolysis
d). None of these
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The electrochemical changes in which electricity from an outside source is used to carry out a reaction are called b) electroplating.
Explanation:
- Electroplating is a process that employs an electrical signal provided by an external power source to reduce cations of a desired metal in solution and produce a metallic coating.
- It refers to a process that adds a surface layer of metal to another type of metal.
- it's typically used to prevent corrosion and rust and to extend the useful life of the metal underneath the electroplated metal.
- It creates a protective barrier to reduce friction and prevent tarnishing of a surface as well as protecting surfaces from wear and tear by applying a thin, durable metal coating.
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