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Indicate the type of isomerism exhibited...

Indicate the type of isomerism exhibited by the following complexes and draw the structures for these isomers:
(i) `K[Cr(H_(2)O)_(2)(C_(2)O_(4))_(2)`
(ii) `[Co(en)_(3)]Cl_(3)`
(iii) `[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2)`
(iv) `[Pt(NH_(3))(H_(2)O)Cl_(2)]`

Text Solution

Verified by Experts

Complex has ionization as well as likeage isomers.
(a) Ionizaton isomers :
`[Co(NH_3)_5(NO_2)](NO_3)-2, [Co(NH_3)_5NO_3](ONO_2)(NO_3)`
(b) Linkage isomers :
`[Co(NH_3)_5(NO_2)](NO_3)_2,[Co(NH_3)_5(ONO)](NO_3)_2`
Octahedral complexes of the type `[MA_5B]` do not show geometrical and optical isomerism.
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