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Tardigrade
Question
Chemistry
The complex [ Fe ( H 2 O )5 NO ]2+ is formed in the brown ring test nitrates when freshly prepared FeSO 4 solution is added to aqueous solution of NO 3-followed by addition of conc. H 2 SO 4 Select correct statement about this complex
Q. The complex
[
F
e
(
H
2
O
)
5
NO
]
2
+
is formed in the brown ring test nitrates when freshly prepared
F
e
S
O
4
solution is added to aqueous solution of
N
O
3
−
followed by addition of conc.
H
2
S
O
4
Select correct statement about this complex
400
157
Coordination Compounds
Report Error
A
Colour change is due to charge transfer
B
It has iron in
+
1
oxidate state and nitrosyl as
N
O
+
C
It has magnetic moment of
3.87
BM
confirming three unpaired electrons in
F
e
D
All the above are correct statements
Solution:
F
e
2
+
changes to brown-coloured ring complex
(b)
NO
→
N
O
+
+
e
−
F
e
2
+
+
e
−
→
F
e
+
Magnetic moment
=
N
(
N
+
2
)
=
15
=
3.87
BM
Thus, (a), (b) and (c) are true
