Which series of reactions correctly relate to iron and its compounds ?

Options

A. `Fe overset(Cl_2 "heat") rarr FeCl_3 overset("heat,air")rarr FeCl_2 overset(Zn) rarr Fe`
B. `Fe overset(O_2"heat") rarr Fe_3O_4 overset(CO. 600^@C) rarr FeO overset(CO.700^@C) rarr Fe`
C. `Fe overset(dilH_2SO_4) rarr FeSO_4 overset(H_2SO_4.O_2) rarrFe_(2)(SO_4)_3 overset("heat") rarr Fe`
D. `Fe overset(O_2"heat") rarrFeO overset(dilH_2SO_4) rarr FeSO_4 overset("heat") rarr Fe`

Answer

B

Explanation

In (A), `FeCl_3` cannot be reduced when heated in air.
In (C), `Fe(SO_4)` cannot convent to Fe on heating instead oxides will be formed.
In (D), `FeSO_4` cannot convert to Fe on heating instead oxides will be formed. Hence (B) is correct.