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Chemistry
Chemistry
Problem
Which of the following ions is responsible for the brown colour in the ring test for a nitrate? a.
[
Fe
(
H
2
O
)
5
NO
]
2
+
[\text{Fe}(\text{H}_2\text{O})_5\text{NO}]^{2+}
[
Fe
(
H
2
O
)
5
NO
]
2
+
b.
[
Fe
(
CN
)
5
NO
]
2
−
[\text{Fe}(\text{CN})_5\text{NO}]^{2-}
[
Fe
(
CN
)
5
NO
]
2
−
c.
[
Fe
(
NO
2
)
6
]
4
−
[\text{Fe}(\text{NO}_2)_6]^{4-}
[
Fe
(
NO
2
)
6
]
4
−
d.
[
Fe
(
H
2
O
)
5
NO
2
]
+
[\text{Fe}(\text{H}_2\text{O})_5\text{NO}_2]^+
[
Fe
(
H
2
O
)
5
NO
2
]
+
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