Name the chief ore of Iron. Write its formula

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Solution

Ore is defined as a source from where the extraction of metals takes place on a commercial and economical scale. The ores can be classified according to the metal present in it.
The chief ore of Iron is Hematite.
The chief ore of Iron is formed by its oxide.
Formula of chief Iron Ore
Hematite is the chief ore of Iron and higher content of Iron is present in such ore.
It contains about 70% of Iron in it.
The chemical formula of Hematite is ${Fe}_{3} O_{4}$ or Ferric oxide.

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