Which series of reactions correctly represents chemical rections related to iron and its compounds ?

Options

A. `Fe overset("Dil." H_(2)SO_(4))(rarr) FeSO_(4) overset(H_(2)SO_(4),O_(2))(rarr) Fe_(2)(SO_(4))_(3) overset("Heat")(rarr) Fe`
B. `Fe overset( O_(2)."Heat")(rarr) FeSO_(4) overset("Dil".H_(2)SO_(4))(rarr) Fe_(2)SO_(4) overset("Heat")(rarr) Fe`
C. `Fe overset( Cl_(2),"Heat")(rarr) FeCl_(3) overset("Heat,air")(rarr) FeCl_(2) overset("Zn")(rarr) Fe`
D. `Fe overset( O_(2),"Heat")(rarr) FeCl_(3) overset("Co,"600^(@)C)(rarr) FeO overset("CO,"700^(@)C)(rarr) Fe`

Answer

D