The complex cation which has two isomers is : (A) [Co(H2O)6]3+ (B) [Co(NH3)5Cl]+ (C) [Co(NH3)5NO2]2+ (D) [Co(NH3)5Cl]2+

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Question

The complex cation which has two isomers is :

(A) [Co(H2O)6]3+
(B) [Co(NH3)5Cl]+
(C) [Co(NH3)5NO2]2+
(D) [Co(NH3)5Cl]2+

Prashant Kotian · Accepted Answer

Correct answer: C. [Co(NH3)5(NO2)]+2 will show structural isomerism as NO2 – is ambidentate ligand NO2 –  nitrito-N ONO–  nitrito-O

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