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1 6. In aerated acidic solution, what are sources for cathodic reaction for Fe corrosion? 17. How does immunity region is different from the passivation region? 18. How much rust will be formed when 100 kg of iron have completely rusted away? (atomic weight of Fe is 55.8) 19. What is the process of attaching a more reactive metal to an iron in order prevent corrosion?

16. In aerated acidic solution, what are sources for cathodic reaction for Fe corrosion?

17. How does immunity region is different from the passivation region?

18. How much rust will be formed when 100 kg of iron have completely rusted away? (atomic weight of Fe is 55.8)

19. What is the process of attaching a more reactive metal to an iron in order prevent corrosion?

Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

Galvanizing is a method ofrust prevention. Theironor steel object is coated in a thin layer of zinc. This stops oxygen and water reaching themetalunderneath - but the zinc also acts as a sacrificialmetal. Zinc ismore reactivethaniron, so it oxidizes in preference to theironobject.

Regards

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