Corrosion of iron can be prevented by coating the surface with:
Correct answer: D. Any of the above
- A. Zn
- B. Sn
- C. Ni
- D. Any of the above
Explanation
This option indicates that all of the listed elements-zinc, tin, and nickel-can be used to coat iron surfaces for the purpose of preventing corrosion. Each of these coatings offers varying degrees of protection against corrosion, and the choice of coating depends on factors such as the environment, cost, durability, and specific requirements of the application. While zinc is the most commonly used coating for preventing corrosion of iron, both tin and nickel can also offer some degree of corrosion resistance depending on the specific requirements and conditions of use. Therefore, "Any of the above" acknowledges the versatility of these coating options for corrosion prevention on iron surfaces.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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