Easy
The process of depositing the layer of one metal on another with the help of electricity is called -
Explanation
Explanation
When electric current is used to coat one metal with a thin layer of another metal (like coating iron with chromium or zinc to prevent rusting), the process is called electroplating. This directly matches the definition given in the question. So the correct answer is Electroplating, option (3).
PRO TIP
Re-check your working by substituting the answer back into the original question.