1.

Indicate the types 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)]

Answer»

Solution :`(i)` Both geometrical (cis,trans) and optical ISOMER for cis-form.

`(ii)` Two optical isomers can EXIST.

`(III)` Linkage isomers `[Co(NH_(3))_(5)ONO](NO_(3))_(2)` and `[Co(NH_(3))_(5)NO_(2)](NO_(3))_(2)`.
`(iv)` Geometrical isomerism.


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