Draw the structures and write the names of all possible isomers of
(A) `[Pt(SCN)(NH_(3))SCN`
(ii)(B) `[Co(SCN)(NH_(3))_(5)]CI_(2)`
(iii) ( C) `[Co(NH_(3))_(5)(NO_(2))]^(2)+` .

Explanation

`(A)` the one linkage isomer `A_(1)` which is `[Pt(NCS)(NH_(3))_(3)]SCN` in `A_(1)^(Θ)SCN` ion (ligand) is linked with `Pt^(2)` ion (central metal ion) throught negatively-charged N -atom Thus the structures and names of these linkage isomers can be written as given below

Triamminethiocyanatoplatium(II) thiocyante)

Triammine isothiocyanatoplatinum (II) thiocyanate
`[(Pt (NCS) (NH_(3))_(3)]SCN`
(ii) `[Co(NCS)(NH_(3))_(5)]CI_(2)`
Pentaammineisothiocyanto cobalt (III) chloride is the linkage is isomer of `[Co(SCN)(NH_(3))_(5)]CI_(2)`
Pentaammineisothiocyanato cablt (III) chloride is the linkage isomer of `[Co(SCN)(NH_(3))_(5)]CI_(2))`
(iii) Since `NO_(2)^(Θ)` ion is an ambidentate ligand the given complex ion has two linkage isomers The structures of these isomers are show in In `(C)NO_(2)^(Θ)` ion (ligand) is linked with the central `Co^(3+)` ion through its N-atom while in its isomer `(C_(1))` it is linked with `Co^(3+)` ion through its O-atom
(Pentamtninenitrocobalt (III) ion)
(Pentamtninenitrocobalt (III) ion) .