The Ellingham diagram for zinc, magnesium and carbon converting into corresponding oxides is shown below. At $1100\,^oC$, which reaction is spontaenous to a maximum extent?

$(I)$ $FeCr_2O_4+NaOH +$ air $\rightarrow (A)+Fe_2O_3$

$(II)$ $(A)+(B) \rightarrow Na_2Cr_2O_7$

Compounds $(A)$ and $(B)$ are :

With respect to an ore, Ellingham diagram helps to predict the feasibility of its

Match list $I$ with list $II$ and select the correct answer using the codes given below the lists