Coordination CompoundHardBloom L3
Question
Effective atomic number of Co(CO)4 is 35, hence it is less stable. It attains stability by
Options
A.Oxidation of Co
B.&
C.Dimerization
D.Both
Solution
Sol. Co(CO)4 $\overset{\quad Reduction + e^{-}\quad}{\rightarrow}$ [Co(CO)4]–
EAN = 35 EAN = 36
Co(CO)4 
Co2(CO)8
EAN = 36
It attains stability by reduction and by dimerization both.
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