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Question: The co-ordination number of cobalt in the complex \(\lbrack Co(en)_{2}Br_{2}\rbrack Cl_{2}\) is....

The co-ordination number of cobalt in the complex [Co(en)2Br2]Cl2\lbrack Co(en)_{2}Br_{2}\rbrack Cl_{2} is.

A

2

B

6

C

5

D

4

Answer

6

Explanation

Solution

[Co(en)2Br2]Cl2\lbrack Co(en)_{2}Br_{2}\rbrack Cl_{2}

C.N.of Co=C.N.\text{of }Co = 2 × number of bidentate ligand

+1×number of monodentate ligand =2× 2 + 1× 2 = 6.