Which of the following complexes shows a coor | vedclass

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(B) The coordination number of a metal complex is defined as the total number of sigma bonds formed by ligands with the central metal atom or ion.In t

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$[Cr(H_2O)_6]^{3+}$

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(B) The coordination number of a metal complex is defined as the total number of sigma bonds formed by ligands with the central metal atom or ion.In the complex $[Cr(H_2O)_6]^{3+}$,there are $6$ water molecules acting as monodentate ligands.Therefore,the coordination number is $6 	imes 1 = 6$.In the other options,$[Zn(CN)_4]^{2-}$,$[Cu(CN)_4]^{2-}$,and $[Ni(NH_3)_4]^{2+}$ all have $4$ ligands,resulting in a coordination number of $4$.

Which of the following complexes shows a coordination number of $6$?

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