CBSE Class 12 · 2001 · All India Compartment · Redox Reactions and ElectrochemistryVery Short Answer

How does cathodic protection of iron operate?

Solution

In cathodic protection a more reactive metal (e.g. Mg or Zn) is connected to the iron object.
The more reactive metal becomes the anode of the resulting cell and is oxidised (sacrificed), while iron serves as the cathode and is thereby protected from oxidation.

CBSE Class 12 Board · 2001 · All India Compartment · Subjective

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