Co-Ordination Compounds Question 272
Question: In which of the following octahedral complex species the magnitude of $ {\Delta_{o}} $ will be maximum?
Options:
A) $ {{[Co{{(H_2O)}_6}]}^{2+}} $
B) $ {{[ Co{{( CN )}_6} ]}^{3-}} $
C) $ {{[ Co{{( C_2O_4 )}_3} ]}^{3-}} $
D) $ {{[Co,{{(NH_3)}_6}]}^{3+}} $
Show Answer
Answer:
Correct Answer: B
Solution:
Crystal field splitting depends upon the nature of ligand.
The nature of ligand $ \Delta $ decreases as shown below $ C_2O_4^{2-}<H_2O<NH_3<C{N^{-}} $ hence the crystal field splitting will be maximum for $ {{[Co{{(CN)}_6}]}^{3-}}^{~} $
