A) +3, +2, +3 and +3
B) +3, +3, +3 and +3
C) +3, +2, +2 and +2
D) +2, +2, +2 and +2
Correct Answer: A
Solution :
[a] O.N. of Fein: |
\[{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{3-}}\Rightarrow x-6=-3\Rightarrow x=+3\] |
\[{{\left[ Fe\left( SCN \right) \right]}^{2+}}\Rightarrow x-1=+2\Rightarrow x=+3\] |
\[{{\left[ Fe{{\left( {{H}_{2}}O \right)}_{6}} \right]}^{3+}}\Rightarrow x+0=+3\Rightarrow x=+3\] |
Thus, option [a] is correct. |
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