Consider the following low-spin complexes K_3[ Co ( NO_2)_6], K_4[ Fe ( CN )_6], K_3[ Fe ( CN )_6], Cu_2[ Fe ( CN )_6] and Zn_2[ Fe ( CN )_6]. The…

Consider the following low-spin complexes $\displaystyle \mathrm{K}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right], \mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right], \mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right], \mathrm{Cu}_2\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ and $\displaystyle \mathrm{Zn}_2\left[\mathrm{Fe}(\mathrm{CN})_6\right]$. The sum of the spin-only magnetic moment values of complexes having yellow colour is $\displaystyle \_\_\_\_$ B.M. (answer in nearest integer)