JEE · NEET Previous Year Question

Which among the following metals is employed to provide cathodic protection to iron?

Topic: JEE PYQ

Answer: A. Full step-by-step solution below.

  1. AZinc
  2. BNickel
  3. CTin
  4. DLead

Correct answer: A

Solution

(a) : Zinc is traditionally used for cathodic protection of iron because it is cheap, adheres well to steel, with a relatively low galvanic potential and a small tendency to corrode. However, the corrosion rate is low in moist environments

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