(a) Which process will you study with the diagram?
(b) Define the process.
(c) Explain the process in brief.
(d) Write the anode and cathode reactions.
Answers
Answer:
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a) The process given in the diagram is of electroplating a aluminium spoon
b)Electroplating produces a very thin coating of these expensive metals on the surfaces of cheaper metals, to give them the appearance and the chemical resistance of the expensive ones.
1.In Silver plating the object which needs to be plated works as cathode
And the anode is silver
2.The anode is a bar of silver metal, and the electrolyte (the liquid in between the electrodes) is a solution of silver cyanide, AgCN, in water. When a direct current is passed through the cell, positive silver ions (Ag+) from the silver cyanide migrate to the negative anode (the spoon), where they are neutralized by electrons and stick to the spoon as silver metal
d)reaction is given in image