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Tardigrade
Question
Chemistry
A complex compound in which the oxidation number of a metal is zero is
Q. A complex compound in which the oxidation number of a metal is zero is
4312
192
KCET
KCET 2008
Coordination Compounds
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A
K
4
[
F
e
(
CN
)
6
]
11%
B
K
3
[
F
e
(
CN
)
6
]
11%
C
[
N
i
(
CO
)
4
]
64%
D
[
Pl
(
N
H
3
)
4
]
C
l
2
14%
Solution:
CO
is a neutral ligand, so the oxidation state of metal in metal carbonyls is always zero.
[
N
i
(
CO
)
4
]
x
+
(
0
×
)
=
0
x
=
0