Which of the following is not a coordination | vedclass

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(D) Coordination isomerism occurs when there is an interchange of ligands between cationic and anionic entities of different metal ions in a complex s

Vedclass · Accepted Answer

$[Cr(NH_3)_2Cl_4][CoCl_2(NH_3)_4]$

Vedclass · Answer

(D) Coordination isomerism occurs when there is an interchange of ligands between cationic and anionic entities of different metal ions in a complex salt.For the complex $[Cr(NH_3)_6][CoCl_6]$,the total number of $NH_3$ ligands is $6$ and $Cl$ ligands is $6$.In option $A$: $[Cr(NH_3)_5Cl][CoCl_5(NH_3)]$,total $NH_3 = 6$ and $Cl = 6$. This is a coordination isomer.In option $B$: $[Cr(NH_3)_3Cl_3][CoCl_3(NH_3)_3]$,total $NH_3 = 6$ and $Cl = 6$. This is a coordination isomer.In option $C$: $[Cr(NH_3)Cl_5][CoCl(NH_3)_5]$,total $NH_3 = 6$ and $Cl = 6$. This is a coordination isomer.In option $D$: $[Cr(NH_3)_2Cl_4][CoCl_2(NH_3)_4]$,total $NH_3 = 6$ and $Cl = 6$. However,the coordination number of $Cr$ in the original complex is $6$. In option $D$,the complex $[Cr(NH_3)_2Cl_4]$ has a coordination number of $6$,but the ligand distribution does not follow the standard exchange pattern relative to the original stoichiometry of the metal centers in a way that maintains the specific isomerism definition compared to the others,or it is simply a valid isomer. Wait,checking the stoichiometry: all options maintain the same total ligand count. Actually,all options provided are technically coordination isomers. Given the standard nature of this question,there might be a typo in the question or options. Assuming the question asks for the one that is $NOT$,and checking the coordination numbers: all are $6$. If we assume the question is correct as provided,all are isomers. However,usually,such questions have one option that violates the stoichiometry. Since all options $A, B, C, D$ have $6$ $NH_3$ and $6$ $Cl$ total,they are all coordination isomers. If this is a multiple-choice question where one must be selected,there may be an error in the question source.

Which of the following is not a coordination isomer of $[Cr(NH_3)_6][CoCl_6]$?

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