Correct order of the magnetic moment(spin only) for the following complexes is:
A. 
B. 
C. 
D. 
Text Solution
Verified by ExpertsA
: Here 
is in +2 oxidation state and configuration of 
is 
. As the CFSE value for Pd is very high so all the electrons will be paired and hence magnetic moment for this complex will be zero.
: Here 
is in 0 oxidation state and configuration of 
is 
. As here the ligand is carbonyl which is a strong field ligand, all the electrons will be paired and hence magnetic moment for this complex will be zero.
Here 
is in +2 oxidation state and configuration of 
is 
. As here the ligand is cyanide which is a strong field ligand, all the electrons will be paired and hence magnetic moment for this complex will be zero.
: Here 
is in +2 oxidation state and configuration of 
is 
. As here the ligand is water which is a weak field ligand, the electrons will not be paired and there are two unpaired electrons in this complex hence magnetic moment for this complex will be 
.
So the order of magnetic moment is 
.
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