Co-Ordination Compounds Question 134

Question: Which of the following complexes is diamagnetic

[RPMT 1997]

Options:

A) $ Ni{{(CO)}_4} $

B) $ Ni{{(Cl_4)}^{2-}} $

C) $ Ni(Br)_4^{2-} $

D) $ NiCl_2.4H_2O $

Show Answer

Answer:

Correct Answer: A

Solution:

$ CO $ is a strong ligand so induce pairing of electrons and hence $ Ni{{(CO)}_4} $ is diamagnetic.



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