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Test Index
Coordination Compounds Part 1
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Section:
Chemistry
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© examsnet.com
Question : 9
Total: 100
Consider that a
d
6
metal ion
(
M
2
+
)
forms acomplex with aqua ligands, and the spin onlymagnetic moment of the complex is
4.90
B
M
. Thegeometry and the crystal field stabilization energyof the complex is:
[2 Sep 2020 Shift 1]
tetrahedral and
−
1.6
Δ
t
+
1
P
tetrahedral and
−
0.6
Δ
t
octahedral and
−
1.6
Δ
0
octahedral and
−
2.4
Δ
0
+
2
P
Validate
Solution:
If spin only magnetic moment of the complex is
4.90
B
M
,
it means number of unpaired electrons should be 4 .
(A) In octahedral complex:
[
M
(
H
2
O
)
6
]
2
+
C
.
F
.
S
.
E
.
=
(
−
0.4
Δ
0
)
×
4
+
(
+
0.6
Δ
0
)
×
2
+
0
×
P
=
−
0.4
Δ
0
(B) In tetrahedral complex:
[
M
(
H
2
O
)
4
]
2
+
C
.
F
.
S
.
E
.
=
(
−
0.6
Δ
t
)
×
3
+
(
+
0.4
Δ
t
)
×
3
+
0
×
P
=
−
0.6
Δ
t
© examsnet.com
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