Which of the following complex is octahedral in shape?
A)\[{{[Fe{{(CN)}_{6}}]}^{-3}}\]
B)\[{{[Zn{{(N{{H}_{3}})}_{4}}]}^{2+}}\]
C) \[[Ni{{(CO)}_{4}}]\]
D) \[{{[(CuC{{l}_{4}})]}^{2-}}\]
Correct Answer:
A
Solution :
after rearrangement in the presence \[\text{C}{{\text{N}}^{-}},\] the resulting complex will be octahdedral due to \[{{d}^{2}}s{{p}^{3}}\] hybridisation and paramagnetic due to one unpaired electron.