A) without any change in the weight of the nail
B) with decrease in the weight of the nail
C) with increase in the weight of the nail
D) without any change in colour or weight of the nail
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A) without any change in the weight of the nail
B) with decrease in the weight of the nail
C) with increase in the weight of the nail
D) without any change in colour or weight of the nail
The correct answer is C) with increase in the weight of the nail
When an iron nail gets rusted, iron oxide is formed with an increase in the weight of the nail.
Rusting of iron is a chemical process in which iron reacts with oxygen and moisture to form a brown flaky substance called rust.
Rust is a general term for iron oxides formed by the reaction of iron with oxygen.
Oxidation of iron is a redox reaction, where electrons are transferred from the iron to oxygen atoms, forming ions of both substances.
Iron and oxygen ions combine to form a compound called iron oxide, which increases the overall weight of the nail. Galvanised iron sheets have a coating which protects the iron from rusting, as it prevents contact between the iron and oxygen.