1.

Indicate the types of isomerism exhibited by the following complexes and draw the structures of 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 :
(ii) Both OPTICAL isomers EXIST
(iii) Ionization isomers : `[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2),[Co(NH_(3))_(5)(NO_(3))](NO_(2))(NO_(3))`
Linkage isomers : `[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2),[Co(NH_(3))_(5)(ONO)](NO_(3))_(2)`
(iv)

Octahedral COMPLEXES of the TYPE `[MA_(5)B]` do not show geometrical and optical isomerism.


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