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Question
Chemistry
Among the following ions, which one has the highest paramagnetism?
Q. Among the following ions, which one has the highest paramagnetism?
2185
205
IIT JEE
IIT JEE 1993
Coordination Compounds
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A
[
C
r
(
H
2
O
)
6
]
3
+
16%
B
[
F
e
(
H
2
O
)
6
]
2
+
54%
C
[
C
u
(
H
2
O
)
6
]
2
+
18%
D
[
Z
n
(
H
2
O
)
6
]
2
+
12%
Solution:
F
e
in
[
F
e
(
H
2
O
)
6
]
2
+
has maximum (four) unpaired electrons, has highest paramagnetism