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Chemistry
Chemistry
Problem
Which of the following is formed in solution when
[
Cu
(
NH
3
)
4
]
2
+
[\text{Cu}(\text{NH}_3)_4]^{2+}
[
Cu
(
NH
3
)
4
]
2
+
is treated with KCN till the colour of the complex is discharged? a.
Cu
(
CN
)
2
\text{Cu}(\text{CN})_2
Cu
(
CN
)
2
b.
[
Cu
(
CN
)
4
]
2
−
[\text{Cu}(\text{CN})_4]^{2-}
[
Cu
(
CN
)
4
]
2
−
c.
[
Cu
(
CN
)
4
]
3
−
[\text{Cu}(\text{CN})_4]^{3-}
[
Cu
(
CN
)
4
]
3
−
d.
[
Cu
(
CN
)
6
]
4
−
[\text{Cu}(\text{CN})_6]^{4-}
[
Cu
(
CN
)
6
]
4
−
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