Which of the following is the true statement about [PtCl2(NH3)2] (Electronic configuration of Pt: [Xe]5d86s2) ? |
A tetrahedral geometry and is paramagnetic in behaviour A tetrahedral geometry and is diamagnetic in behaviour A square planar geometry and is paramagnetic in behaviour A square planar geometry and is diamagnetic in behaviour |
A square planar geometry and is diamagnetic in behaviour |
The correct answer is option 4. A square planar geometry and is diamagnetic in behaviour. Oxidation state of NH3 in the given compound = 0 Oxidation state of Cl in the given compound = −1
Let x be the oxidation state of Pt in the given compound.
Therefore,
x + 2(−1) + 2(0) = 0
⇒x = +2
O.S. of Pt (Z = 78) in the complex is +2 (Pt2+)
Pt2+:[Xe]4f145d8
The eight electrons in 5d-subshell pair up in four d-orbitals followed by dsp2-hybridisation, The shape of the complex is square planar.
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