The fusion of chromite ore with sodium carbonate in the presence of air leads to the formation of products A and B along with the evolution of CO_2.…

The fusion of chromite ore with sodium carbonate in the presence of air leads to the formation of products A and B along with the evolution of $\displaystyle \mathrm{CO}_2$. The sum of spin-only magnetic moment values of $\displaystyle A$ and $\displaystyle B$ is $\displaystyle \_\_\_\_$ B.M. (Nearest integer) [Given atomic number : C : $\displaystyle 6$, Na : $\displaystyle 11$, O : $\displaystyle 8$, Fe :$\displaystyle 26$, Cr:$\displaystyle 24$]