Coordination CompoundHard
Question
The correct statement among the following is :
Options
A.$\left\lbrack Ni(CN)_{4} \right\rbrack^{2 -}$ and $\left\lbrack {NiCl}_{4} \right\rbrack^{2 -}$ are diamagnetic and $Ni(CO)_{4}$ is paramagnetic.
B.$Ni(CO)_{4}$ and $\left\lbrack {NiCl}_{4} \right\rbrack^{2 -}$ are diamagnetic and $\left\lbrack Ni(CN)_{4} \right\rbrack^{2 -}$ is paramagnetic.
C.$Ni(CO)_{4}$ and $\left\lbrack Ni(CN)_{4} \right\rbrack^{2 -}$ are diamagnetic and $\left\lbrack {NiCl}_{4} \right\rbrack^{2 -}$ is paramagnetic.
D.$Ni(CO)_{4}$ is diamagnetic and $\left\lbrack {NiCl}_{4} \right\rbrack^{2 -}$ and $\left\lbrack Ni(CN)_{4} \right\rbrack^{2 -}$ are paramagnetic.
Solution
$\ \left\lbrack Ni(CN)_{4} \right\rbrack^{2 -} \rightarrow 3{\text{ }d}^{8} \rightarrow$ diamagnetic $\rightarrow {dsp}^{2}\left\lbrack Ni(CO)_{4} \right\rbrack \rightarrow 3{\text{ }d}^{10} \rightarrow$ diamagnetic $\rightarrow {sp}^{3}\left\lbrack {NiCl}_{4} \right\rbrack^{2 -} \rightarrow 3{\text{ }d}^{8} \rightarrow e^{2,2}t_{2}^{2,1,1} \rightarrow {sp}^{3} \rightarrow$ paramagnetic.
Create a free account to view solution
View Solution FreeMore Coordination Compound Questions
Which of the following statements is correct for complex [Cr(NH3)(CN)4(NO)]2 - (given that n = 1)?...The total crystal field stabilisation energy (CFSE) for the complexes [Co(H2O)6]3+ and [CoF6]3- are respectively : (P is...In complexes more stability is shown by :...In the coordination compound, K4[Ni(CN)4], the oxidation state of nickel is...Which method can be used to distinguish [Co(NH3)6][Cr(NO2)6] and [Cr(NH3)6][Co(NO2)6]...