Question
What do you mean by cathodic protection?
Answer
Cathodic protection is a technique used to prevent the corrosion of a metal surface by making it a cathode of an electrochemical cell. In this method, a more reactive metal (e.g., magnesium or zinc) is connected to the metal surface to be protected and is made the anode. This causes the more reactive metal to corrode instead of the protected metal, as it becomes the site for oxidation reactions.
