Which among the following coordination compou | vedclass

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(B) The coordination number is defined as the total number of sigma bonds formed by the central metal atom with the ligands.For monodentate ligands,th

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$[Co(en)_3]^{3+}$

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(B) The coordination number is defined as the total number of sigma bonds formed by the central metal atom with the ligands.For monodentate ligands,the coordination number equals the number of ligands.For polydentate ligands,the coordination number is the number of ligands multiplied by their denticity.In $[Co(en)_3]^{3+}$,the ligand $en$ (ethylenediamine) is a bidentate ligand.Therefore,the number of ligands is $3$,but the coordination number is $3 	imes 2 = 6$.Thus,the coordination number is not equal to the number of ligands.

Which among the following coordination compounds does not have a coordination number equal to the number of ligands?

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