The two complexes given below are $............$.

Which of the following is paramagnetic?

In which of the following ions is the spin-only magnetic moment the lowest?

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:

Which complex among the following is most paramagnetic?

$[Co(NH_3)_5SO_4]Br$ and $[Co(NH_3)_5Br]SO_4$ are a pair of which isomers?