A balanced reaction between Fe and O2 to give magnetic oxide is :
2Fe+O2→2FeO
3Fe+2O2→Fe3O4
Fe+2O2→Fe3O4
2Fe+2O2→Fe2O3
A
Fe+2O2→Fe3O4
B
2Fe+2O2→Fe2O3
C
3Fe+2O2→Fe3O4
D
2Fe+O2→2FeO
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Solution
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Iron is converted to iron(II, III) oxide.
Fe3O4isamagneticoxide.
3Fe+2O2→Fe3O4
Hence, option (C) is correct.
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