Question

E.A.N. of $K\left[PtC{l}_3\right({\eta }^2-C_2{H}_4\left)\right]$ is?

• A. $86$
• B. $78$
• C. $84$
• D. $34$

Answer 1

Answer: (C)

$84$

$K\left[PtC{l}_3\right({\eta }^2-C_2{H}_4\left)\right]$: Charge on Pt metal is +2.

E.A.N of $Pt=\text{Atomic number - Charge + 2}$$\times \text{Number of bonded ligand}$

E.A.N of $Pt=78-2+3\times 2+2=84$