Question: The number of bridging $\mathrm{CO}$ ligand (s) and $\mathrm{Co}-$ Co bond (s) in $\mathrm{CO}_{2}(\mathrm{CO}) \mathrm{g}$, respectively are :-
0 and 2
2 and 0
4 and 0
2 and 1
Correct Option: , 4
Solution:
Bridging $\mathrm{CO}$ are 2 and $\mathrm{Co}-\mathrm{Co}$ bond is 1 .
