Tardigrade
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Tardigrade
Question
Chemistry
The primary and secondary valencies of cobalt respectively in [ Co ( NH 3)5 Cl Cl Cl 2. are:
Q. The primary and secondary valencies of cobalt respectively in
[
C
o
(
N
H
3
)
5
C
l
Cl
C
l
2
are:
297
93
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JEE Main 2023
Coordination Compounds
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A
3 and 5
0%
B
2 and 6
40%
C
2 and 8
0%
D
3 and 6
60%
Solution:
[
C
o
(
N
H
3
)
5
Cl
]
C
l
2
Oxidation number of
C
o
is
+
3
.
So primary valency is
3
.
It is an octahedral complex so secondary valency
6
or Co-ordination number
6
.