Question

The structure of the complex $\left[Pt\right(N{H}_3{)}_4{]}^{2+}$ is

• A. Square planar
• B. Tetrahedral
• C. Pyramidal
• D. Pentagonal

Answer 1

The correct option is A Square planar

$5d^8$ configuration have higher CFSE and then the pairing of electron takes place against the Hund's rule.
G.S Electronic configuration of $P{t}^{2+}-\left[Xe\right]4f^{14}5d^8$

The hybridiastion of the complex is $ds{p}^2$ and the structure is thus square planar.