Co-Ordination Compounds Question 253
Question: Which of the following statements is incorrect?
Options:
A) $ {{[ MnCl_6 ]}^{3-}} $ is more paramagnetic than $ {{[ Mn{{( CN )}_6} ]}^{3-}} $
B) Both $ {{[Co{{(C_2O_4)}_3}]}^{3-}} $ and $ {{[CoF_6]}^{3-}} $ are paramagnetic.
C) $ {{[Fe{{(CN)}_6}]}^{3-}} $ forms inner orbital complex whereas $ {{[ FeF_6 ]}^{3-}} $ forms outer orbital complex.
D) Both [a] and [b]
Show Answer
Answer:
Correct Answer: B
Solution:
$ {{[Co{{(C_2O_4)}_3}]}^{3-}} $ is diamagnetic as oxalate is a strong ligand causing pairing of 3d electrons in $ C{o^{3+}} $ thereby leading to $ d^{2}sp^{3} $ hybridisation.
