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Problem
Problem
FeCl
3
\text{FeCl}_3
FeCl
3
solution added to
K
4
[
Fe
(
CN
)
6
]
\text{K}_4[\text{Fe}(\text{CN})_6]
K
4
[
Fe
(
CN
)
6
]
gives A while with KSCN gives B. A and B respectively are : a.
Fe
3
[
Fe
(
CN
)
6
]
2
,
Fe
(
CNS
)
3
\text{Fe}_3[\text{Fe}(\text{CN})_6]_2, \text{Fe}(\text{CNS})_3
Fe
3
[
Fe
(
CN
)
6
]
2
,
Fe
(
CNS
)
3
b.
Fe
4
[
Fe
(
CN
)
6
]
3
,
KFe
(
CNS
)
3
\text{Fe}_4[\text{Fe}(\text{CN})_6]_3, \text{KFe}(\text{CNS})_3
Fe
4
[
Fe
(
CN
)
6
]
3
,
KFe
(
CNS
)
3
c.
Fe
4
[
Fe
(
CN
)
6
]
3
,
K
3
[
Fe
(
CNS
)
6
]
\text{Fe}_4[\text{Fe}(\text{CN})_6]_3, \text{K}_3[\text{Fe}(\text{CNS})_6]
Fe
4
[
Fe
(
CN
)
6
]
3
,
K
3
[
Fe
(
CNS
)
6
]
d.
Fe
4
[
Fe
(
CN
)
6
]
3
,
K
3
[
Fe
(
SCN
)
6
]
\text{Fe}_4[\text{Fe}(\text{CN})_6]_3, \text{K}_3[\text{Fe}(\text{SCN})_6]
Fe
4
[
Fe
(
CN
)
6
]
3
,
K
3
[
Fe
(
SCN
)
6
]
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