1.

Explain the following giving an exmaple in each case: (i) Linkage isomersion. (ii) An outer orbital complex .. (iii) A bidentate ligand.

Answer» (i) Linkage isomerism: This type of the isomerism arises due to the presence of an ambidentae Ligand in a coordination compound e.g., `[Co(NH_(3))_(5) NO_(2)]Cl_(2)`.
(ii) An outer orbital complex. When ns,np and nd orbitals are involved in hybridistaion, outer orbital complex is formed e.g., `[CoF_(6)]^(2-)`
(iii) Bidentate ligand : When a Ligand is bound to a metal ion thorugh two donor atoms it is said to be didentate ligand,. e.g., `H_(2)N-CH_(2)-CH_(2)-NH_(2)`.


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