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chemistry igcse acapprinted 29 · PDF 29
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Hydrogen:
If hydrogen is being formed in the electrolysis, the following equation will be used:
Hydroxide:
In electrolysis, hydroxide ions are getting oxidized as they lose electrons to form oxygen and water.
For this, the following equation will be used for this:
Electroplating
The process of electroplating involves applying a thin layer of one metal to the surface of another.
The object that has to be electroplated serves as the cathode in this operation (negative electrode).
The pure metal that will be deposited into the object's surface serves as the anode, or positive
electrode. The electrolyte, which aids in the transfer of metal ions during electroplating, is a
solution that contains a soluble salt of the metal utilized at the anode.
Example:
Copper atoms undergo oxidation at the anode, where they lose electrons to create copper ions that
are released into the solution. At the same time, these copper ions reach the cathode and reduce to