Question

why do we paint objects made up of iron ​

Answer 1

Galvanising is a method of rust prevention. Theiron 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

Answer 2

Answer:

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Explanation:

Hi buddy here is your answer this is because to prevent the food from getting oxidized..nitrogen is a reducing agent