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(D) The complex $[Cr(NH_3)_2(OH)_2Cl_2]^-$ is an octahedral complex.$1$. Ionization isomerism requires an exchange of ligands between the coordination

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$iv$ and $v$

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(D) The complex $[Cr(NH_3)_2(OH)_2Cl_2]^-$ is an octahedral complex.$1$. Ionization isomerism requires an exchange of ligands between the coordination sphere and the counter ion,which is not possible here as there is no counter ion.$2$. Hydrate isomerism requires water molecules to be present as ligands or in the crystal lattice,which is not applicable here.$3$. Coordination isomerism requires a complex salt with both cationic and anionic parts,which is not applicable here.$4$. Geometrical isomerism: The complex $[Ma_2b_2c_2]$ can exhibit geometrical isomerism (cis and trans forms).$5$. Optical isomerism: The complex can exist in various geometrical isomers,some of which are chiral and exhibit optical activity.Therefore,the complex exhibits geometrical and optical isomerism.

Consider the following isomerism:
$i$. Ionization
$ii$. Hydrate
$iii$. Coordination
$iv$. Geometrical
$v$. Optical
Which of the above isomerisms are exhibited by $[Cr(NH_3)_2(OH)_2Cl_2]^-$?

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Consider the following isomerism:$i$. Ionization$ii$. Hydrate$iii$. Coordination$iv$. Geometrical$v$. OpticalWhich of the above isomerisms are exhibited by $[Cr(NH_3)_2(OH)_2Cl_2]^-$?