Which of the following statements is correct? | vedclass

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(B) $1$. Linkage isomerism is shown by ligands that have two donor atoms (ambidentate ligands). In $[Pt(NO_3)_2(en)_2]^{2+}$,$NO_3^-$ is not an ambide

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$[Cr(CO_3)(NH_3)_4]Br$ can show ionization isomerism

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(B) $1$. Linkage isomerism is shown by ligands that have two donor atoms (ambidentate ligands). In $[Pt(NO_3)_2(en)_2]^{2+}$,$NO_3^-$ is not an ambidentate ligand,so it does not show linkage isomerism.$2$. Ionization isomerism occurs when the counter ion in the coordination sphere is a potential ligand and can displace a ligand in the coordination sphere. In $[Cr(CO_3)(NH_3)_4]Br$,$Br^-$ can exchange with $CO_3^{2-}$,thus it shows ionization isomerism.$3$. Hydrate isomerism is a type of ionization isomerism where water molecules act as ligands. $FeCl_3.6H_2O$ is a salt hydrate,not a coordination complex exhibiting hydrate isomerism in the standard sense of ligand exchange.$4$. $[FeCl_3(NH_3)_3]$ can exhibit geometrical isomerism (facial and meridional),which is a type of stereoisomerism,not structural isomerism.

Which of the following statements is $correct$?

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