What is the chemical effect of electric current? Explain the process of electroplating
Answers
Those solutions in which electric current can pass are called electrolytes. Thereby, whenever in any aqueous solution of salt, acid or alkali an electric current is passed and if these solutions decompose into +ve and -ve ions then this is called Chemical effect of the electric current and the phenomenon is called Electrolysis.
Electroplating :- On the basis of the principle of electrolysis electroplating is done. The metallic body which is to be coated acts like an anode and the metal whose layer is to be coated on another acts like a cathode. Thus an electrolyte cell is formed and the process of electrolysis occurs.
When the electric current flows through the electrolyte then the metal from the anode starts to dissolve in the solution and deposits on the cathode. Thereby, after sometimes a thin layer is to be coated on the cathode and ultimately metal is coated.
For electroplating usually metals like Gold, Silver, Platinum, Nickel, Zinc, Chromium etc are used.