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Chemistry
Chemistry
Problem
Which of the following are diamagnetic? (I)
K
4
[
F
e
(
C
N
)
6
]
\mathrm{K}_4[\mathrm{Fe}(\mathrm{CN})_6]
K
4
[
Fe
(
CN
)
6
]
(II)
K
3
[
C
r
(
C
N
)
6
]
\mathrm{K}_3[\mathrm{Cr}(\mathrm{CN})_6]
K
3
[
Cr
(
CN
)
6
]
(III)
K
3
[
C
o
(
C
N
)
6
]
\mathrm{K}_3[\mathrm{Co}(\mathrm{CN})_6]
K
3
[
Co
(
CN
)
6
]
(IV)
K
2
[
N
i
(
C
N
)
4
]
\mathrm{K}_2[\mathrm{Ni}(\mathrm{CN})_4]
K
2
[
Ni
(
CN
)
4
]
a. I, II and IV b. I, III and IV c. II and III d. I and IV
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