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In which condition is an iron object most likely to rust?

Answer and explanation

Correct answer: In moist open air

Rusting of iron requires both water (moisture) and oxygen. Moist open air provides both moisture and oxygen, so an iron object is most likely to rust there. In contrast, a layer of oil or paint prevents iron from coming into contact with air and moisture.

Related tags

ScienceClass 10Chemical ReactionsRustingCorrosionIron

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