Which of these methods is/are utilized to help prevent the rusting of iron?
I. Painting iron
II. Treating iron with sulfuric acid
III. Coating iron with a metal that is more likely to oxidize
A) I only
B) II only
C) I and III
D) I, II, and III
E) III only

Question

Quizplus · Accepted Answer

I. Painting iron creates a barrier between iron and moisture in the air, preventing rust from forming.
II. Treating iron with sulfuric acid is not a common method used to prevent rusting, as it does not provide a lasting solution.
III. Coating iron with a metal that is more likely to oxidize, such as zinc or aluminum, creates a sacrificial layer that will corrode first if exposed to moisture, protecting the underlying iron from rusting. This process is called galvanization.

Which of These Methods Is/are Utilized to Help Prevent the Rusting