Select the incorrect match.

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Question

(A) In option $A$,the pair $[Cr(NO_2)(NH_3)_5][ZnCl_4]$ and $[Cr(NO_3)(NH_3)_5][ZnCl_4]$ are not isomers because the ligands $NO_2^-$ and $NO_3^-$ are

Vedclass · Accepted Answer

$[Cr(NO_2)(NH_3)_5][ZnCl_4], [Cr(NO_3)(NH_3)_5][ZnCl_4]:$ Linkage isomerism

Vedclass · Answer

(A) In option $A$,the pair $[Cr(NO_2)(NH_3)_5][ZnCl_4]$ and $[Cr(NO_3)(NH_3)_5][ZnCl_4]$ are not isomers because the ligands $NO_2^-$ and $NO_3^-$ are different chemical species. Linkage isomerism occurs when an ambidentate ligand (like $NO_2^-$ or $SCN^-$) coordinates through different donor atoms. $NO_3^-$ is not an ambidentate ligand. Therefore,$A$ is the incorrect match.

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