Is it true that the chemical formula of rust is (Fe2O3.xH2O) hydrated ferric oxide?

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Detailed Solution

The above statement is true.
In the presence of moisture, iron combines with the oxygen from the air to create a brown-coloured chemical substance called rust or iron oxide. It is a part of corrosion and is a chemical process that results in the formation of red or orange coating on the surface of metals. It basically occurs on surfaces of iron and its alloys. The rusting of iron is characterised by the formation of a layer of a brown, flaky substance that can easily crumble into a powder. These can be found as a class of minerals that are created from the weathering of minerals that contain iron (Fe) and hydroxides (OH–) and weakly bound water. So, the chemical formula of rust is (Fe2O3.xH2O) hydrated ferric oxide.

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