A) Copper
B) Chromium
C) Lead
D) Iron
Correct Answer: D
Solution :
Hematite is the mineral form of iron (III) oxide \[\left( F{{e}_{2}}{{O}_{3}} \right),\]one of several iron oxides. It is the oldest known iron oxide mineral and is widespread in rocks and soils.You need to login to perform this action.
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