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Question

Which of the following phenomenon occurs in rusting?

A
Carbonisation
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B
Oxidation
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C
Reduction
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D
Redox reaction
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Solution

The correct option is B Oxidation
Oxidation is a process in which oxygen combines with an element or substance, slowly as in the case of rust or rapidly as in the case of burning of wood. The oxygen in the air reacts with iron in the presence of water or humid conditions. This results in the formation of a chemical compound called iron oxide, and it is known as rust, a product of oxidation.

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