Write the chemical formula of rust. – InterviewSolution

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1.	Write the chemical formula of rust.
Answer» Iron when reacted with both water and oxygen which present in air (moist air), corrodes. Its silvery colour changes to a reddish-brown, because hydrated oxides are formed which is commonly called as rust.Reaction showing formation of rust when reacted with water in presence of oxygen (atmosphere).4Fe + 3O₂+ XH₂O → 2Fe₂O₃.XH₂O

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