How many isomers of the complex, `Pt(NH_(3))_(2)(SCN)_(2)` are possible

Options

A. 8
B. 10
C. 4
D. 6

Answer

4

Explanation

`[Pt(NH_(3))_(2)(SCN)_(2)]-` cis and trans isomers `=2`.
`[Pt(NH_(3))_(2)(NCS)(SCN)]-` cis and trans isomers `=2`.
`[Pt(NH_(3))_(2)(NCS)_(2)-` cis and trans isomers `=2`.
The complex is square planar `,` so it does not have a pair of enantiomer on account of the presence of plane of symmetry.