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Tardigrade
Question
Chemistry
The atomic number of cobalt is 27. The EAN of cobalt in Na3 [Co(NO2)4Cl2] is
Q. The atomic number of cobalt is
27
. The
E
A
N
of cobalt in
N
a
3
[
C
o
(
N
O
2
)
4
C
l
2
]
is
2968
226
KCET
KCET 2012
Coordination Compounds
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A
35
11%
B
24
29%
C
36
46%
D
34
14%
Solution:
EAN of
C
o
in
N
a
3
[
C
o
(
N
O
2
)
4
C
l
2
]
=
Atomic number of Co \pm oxidation state of Co
+
number of
e
−
taken from
−
N
O
2
and
−
Cl
=
27
+
3
+
(
4
+
2
)
=
36