`[Co(NH_(3))_(4)(NO_(2))_(2)]CI` exhibits

Options

A. linkage isomerism, geometrical isomerism, and opical isomerism
B. linkage isomerism, ionization isomerism and optical isomerism
C. linkage isomerism, ionization isomerism and geometrical isomerism
D. ionization isomerism, geometrical isomerism and optical isomerism.

Answer

C

Explanation

Complex exhibits: Linkage isomerism as `NO_(2)` is an ambidantate ligand:
`[Co(NH_(3))_(4)(NO_(2))_(2)]C1 [Co(NH_(3))_(4)(ONO)_(2)]C1`
Ionization isomerism due to interacharge of `NO_(2)` and C1:
`[Co(NH_(3))_(4)(NO_(2))_(2)]C1` and `[Co(NH_(3))_(4)(NO_(2))C1]NO_(2)`
Geometrical isomerism as two `NO_(2)` groups may be `90^(@)` apart (cis) or `180^(@)` apart (trans):