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JEEMAIN and NEET
>>
JEEMAIN PAST PAPERS
>>
2017
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Q)
On treatment of
100
m
L
of
0.1
M
solution of
C
o
C
l
3
.6
H
2
O
with excess
A
g
N
O
3
;
1.2
×
10
22
ions are precipitated. The complex is :
( A )
[
C
o
(
H
2
O
)
4
C
l
2
]
C
l
.2
H
2
O
( B )
[
C
o
(
H
2
O
)
6
]
C
l
3
( C )
[
C
o
(
H
2
O
)
3
C
l
3
]
.3
H
2
O
( D )
[
C
o
(
H
2
O
)
5
C
l
]
C
l
2
.
H
2
O
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