The coordination number of cobalt in [Co(en)_ | vedclass

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(C) The coordination number is defined as the number of ligand donor atoms to which the metal is directly bonded.In the complex $[Co(en)_2Br_2]Cl_2$,t

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$6$

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(C) The coordination number is defined as the number of ligand donor atoms to which the metal is directly bonded.In the complex $[Co(en)_2Br_2]Cl_2$,the ligands are $en$ (ethylenediamine) and $Br^-$.$en$ is a bidentate ligand,meaning it donates two donor atoms per molecule.There are $2$ $en$ ligands,so they provide $2 	imes 2 = 4$ donor atoms.There are $2$ $Br^-$ ligands,which are monodentate,providing $2 	imes 1 = 2$ donor atoms.Total coordination number = $4 + 2 = 6$.

The coordination number of cobalt in $[Co(en)_2Br_2]Cl_2$ is .........

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