Coordination Compounds 2 Question 33

####35. The complex showing a spin only magnetic moment of 2.82BM is

(2010)

(a) Ni(CO)4

(b) [NiCl4]2

(c) Ni(PPh3)4

(d) [Ni(CN)4]2

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Answer:

Correct Answer: 35. (a)

Solution:

  1. Magnetic moment =2.83BM indicates that there is two unpaired electrons.

u=n(n+2)BM=8BM=2.82BM

In[NiCl4]2, Ni has d8 configuration and Clis a weak ligand :



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