Question

Choose the correct statements regarding rusting.

• A. Painting
• B. Galvanising
• C. Chrome plating
• D. All of the given options are correct.

Answer 1

Answer: (A), (B), (C)

The correct options are
A

Painting

B

Galvanising

C

Chrome plating

When substances made of iron are exposed to oxygen and moisture (water), rusting takes place. Rusting removes a layer of material from the surface and makes the substance weak. Rusting is a chemical change. Rusting makes iron flaky and friable and decreases its intended usage period. The strength, appearance, and permeability degrade which leaves the rusted iron useless.