Question

The correct name of $\left[ Pt \left( NH _{3}\right)_{4} Cl _{2}\right]\left[ PtCl _{4}\right]$ is-

• A. tetraammine dichlorido platinum (IV) tetrachloridoplatinate (II)
• B. dichlorido tetra ammine platinum (IV)tetrachloridoplatinate (II)
• C. tetrachlorido platinum (II) tetraammineplatinate(IV)
• D. tetrachlofido platinum (II) dichloridotetraamineplatinate (IV)

Answer 1

Answer: (A)

$\left[ Pt \left( NH _{3}\right)_{4} Cl _{2}\right]\left[ PtCl _{4}\right]$

Platinum shows two oxidation states i.e., $+4$ and $+2$.

Let us assume that in $1^{\text {st }}$ complex $Pt$ is in $+4$ O.S.

$\therefore (+4)+0-2+x-4=0$

$x =+2$

$\therefore $ IUPAC name is Tetraamminedichloridoplatinum (IV) tetrachloridoplatinate (II)