A) \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\] - Square planar
B) \[[Ni{{(CO)}_{4}}]\] - Neutral ligand
C) \[[Fe{{(C{{N}_{6}})}^{3-}}]\] - \[s{{p}^{3}}{{d}^{2}}\]
D) \[{{[Co{{(en)}_{3}}]}^{3+}}\] - Follows EAN rule
Correct Answer: C
Solution :
(a) In \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}},Cu\] is present as \[C{{u}^{2+}}\] \[C{{u}^{2+}}=[Ar]\,\,3{{d}^{9}}4{{s}^{0}}\]You need to login to perform this action.
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