The magnetic moment of a transition element is $\sqrt{15} \, B.M.$ Determine the number of unpaired electrons present in it.

Which of the following complex compound$(s)$ is/are paramagnetic and low spin?
$(I) \, K_3[Fe(CN)_6] \quad (II) \, [Ni(CO)_4] \quad (III) \, [Cr(NH_3)_6]^{3+} \quad (IV) \, [Mn(CN)_6]^{4-}$
Choose the correct code:

For which pair is the magnetic moment $\mu = \sqrt{15} \ BM$ correct?

Number of stereoisomers exhibited by $[Co(en)_{2} Cl_{2}]^{+}$ is

Which of the following complexes is paramagnetic?

Which one of the following complexes is paramagnetic?