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Chemistry
Chemistry
Problem
In the extraction of copper from copper pyrites, iron is removed as : a.
FeSO
4
\text{FeSO}_4
FeSO
4
b.
FeSiO
3
\text{FeSiO}_3
FeSiO
3
c.
Fe
3
O
4
\text{Fe}_3\text{O}_4
Fe
3
O
4
d.
Fe
2
O
3
\text{Fe}_2\text{O}_3
Fe
2
O
3
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