A) \[{{[Co{{(CN)}_{6}}]}^{3-}}\]
B) \[{{[Co{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}\]
C) \[{{[Co{{({{H}_{2}}O)}_{6}}]}^{3+}}\]
D) \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]
Correct Answer: A
Solution :
Crystal field stabilisation energy (CFSE) for octahedral complex, \[{{\Delta }_{o}}\] depends on the strength of negative ligand. [Higher the strength more will be the CFSE] Spectrochemically it has been found that the strength of splitting is as: \[CO>C{{N}^{-}}>NO_{2}^{-}>en>N{{H}_{3}}>py>NC{{S}^{-}}\] \[>{{H}_{2}}O>{{O}^{2-}}>o{{x}^{2-}}>O{{H}^{-}}>{{F}^{-}}>C{{l}^{-}}\] \[>SC{{N}^{-}}>{{S}^{2-}}>B{{r}^{-}}>{{I}^{-}}\]You need to login to perform this action.
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