Question

how does electroplating occur ?

Answer 1

Hey mate here is your answer

Electroplating works through an electrolytic cell with a cathode and an anode. The cathode is the metal that needs to be plated. It is important to prepare the surface before beginning the procedure because sometimes there is contamination on the surface that could lead to bad electroplating results...

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Answer 2

$\huge\bold{ Electroplating}$

Electroplating is the process of coating a thin layer of one metal over another by the process of electrolysis for decorative or protective purposes.

$\textbf{The method involved in electroplating}$
$\textbf{are as follows }$ —

★ The object to be coated is made of cathode.

★ The metal to be deposited on the object is taken in The form of an electrode and made the anode.

★ The electrolyte contains dissolved salts of the metal to be coated.

★ Ions of the metal (which are positively charged) are attracted by the cathode and therefore move towards the object and get deposited on it.
The metal commonly deposited by electroplating are chromium,nickel,gold,silver,tin and zinc.

★ Chromium is deposited on iron and other metal to give them a Shiny appearance and to protect them from corrosion. Car parts, bathroom parts, bicycles handlebars and wheel rims are electroplated.

★ Gold and silver are deposited on jewellery made of cheaper metals to make them look more attractive.

★ Tin is deposited on Iron cans used as food containers to prevent reaction of food with iron.

★ Zincis deposited on iron to prevent it from rusting. Some examples of this are zinc deposition on Iron used in buildings, bridge and water pipes.

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$\huge\bold{Thanks}$