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Byju's Answer
Standard XII
Chemistry
Coordination Number
The complex ...
Question
The complex
F
e
(
C
O
)
x
follows the EAN rule.
Then the value of x is:
A
3
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B
4
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C
5
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D
6
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Solution
The correct option is
C
5
EAN= [Z metal – (ox. state of the metal) + 2(coordination number of the metal)].
Assume the value of the ccoordination number of the metal as x.
So, according to EAN rule,
26
−
0
+
x
×
2
=
36
x
=
5
.
Option C is correct.
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