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STD 12 - 5. Co-ordination chemistry — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 5. Co-ordination chemistry4 Marks
MCQ
The Spin only magnetic moment value of square planar complex $\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}\left(\mathrm{NH}_2 \mathrm{CH}_3\right)\right] \mathrm{Cl}$ is $B.M.$ (Nearest integer) (Given atomic number for $\mathrm{Pt}=78$ 
  • A
    $1$
  • B
    $2$
  • C
    $3$
  • ✓
    $0$
✓

Answer

Correct option: D.
$0$
d
$\mathrm{Pt}^{2+}\left(\mathrm{d}^8\right)$

$\mathrm{Pt}^{2+} \rightarrow \mathrm{dsp}^2$ hybridization and have no unpaired e-s.

$\therefore$ Magnetic moment $\mathrm{o} 0$

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