how can be Rusting of iron can be prevented?.
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Galvanising is a method of rust prevention. The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal . Zinc is more reactive than iron, so it oxidises in preference to the iron object.
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galvanaisation is the method from which iron can be prevented from rusting...
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