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Extraction of Copper

What is the c...

Question

What is the chemical formula of iron ore Hematite?
(correct answer +1, wrong answer -0.25)

A

F e_{2} O_{3}

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B

F e_{3} O_{4}

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C

F e S_{2}

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D

F e_{2} O

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Solution

The correct option is A $F e_{2} O_{3}$
The chemical formula for iron Hematite is $F e_{2} O_{3}$ .

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