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MHT CET 2017 Chemistry Solved Paper
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© examsnet.com
Question : 28
Total: 50
The correct charge on and co-ordination number of ‘Fe’ in
K
3
[
F
e
(
C
N
)
6
]
is
+2,4
+3,6
+2,6
+3,3
Validate
Solution:
(b) Coordination number of Fe in
K
3
[
F
e
(
C
N
)
6
]
is 6 as it is bonded with six CN ligands.
Let x be the oxidation state of Cr
∴ x + 6 (-1) = -3
∴ x = + 3
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