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Question
Chemistry
Correct formula of the complex formed in the brown ring test for nitrates is
Q. Correct formula of the complex formed in the brown ring test for nitrates is
1972
227
BITSAT
BITSAT 2017
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A
F
e
S
O
4
NO
0%
B
[
F
e
(
H
2
O
)
5
NO
]
2
+
100%
C
[
F
e
(
H
2
O
)
5
NO
]
+
0%
D
[
F
e
(
H
2
O
)
5
NO
]
3
+
0%
Solution:
The correct formula of the complex formed in the brown ring test for nitrates is:
[
F
e
(
H
2
O
)
5
NO
]
2
+
It is formed through the following reaction:
F
e
S
O
4
+
5
H
2
O
+
NO
→
[
F
e
(
H
2
O
)
5
NO
]
S
O
4