Which of the following metals is least likely to corrode in moist air?
-
A.
Zinc
-
B.
Iron
-
C.
Magnesium
-
D.
Copper
Correct Answer:
D. Copper
Explanation:
The correct answer is Option D: Copper.
Copper is highly resistant to corrosion in moist environments because it naturally develops a protective layer of copper oxide on its surface when exposed to air. This stable film acts as a physical barrier that prevents oxygen and moisture from reaching the underlying metal, thereby halting further oxidation. While metals like iron rust quickly and magnesium or zinc are more chemically reactive, copper's ability to form this enduring patina makes it exceptionally durable for use in plumbing, electrical work, and outdoor architecture.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.