question_answer 51)

    Due to the presence of ambidentate ligands coordination compounds show isomerism. Palladium complexes of the type  and are (a) linkage isomers                  (b) coordination isomers (c) ionisation isomers                (d) geometrical isomers

Answer:

                    (d) The ligand(s) which has two different bonding sites are known as ambident ligands e.g., NCS, NO2 etc. Here, NCS has two binding sites at N and S. Hence, NCS (thiocyanate) can bind to the metal ion in two ways                    Thus, coordination compounds containing NCS as a ligand can show linkage isomerism and are linkage isomers. Hence, correct choice is (a).