MCQ
Magnetic moment of the complexes is zero in
- ✓$[Ni(CN)_4]^{2-} , [Ni(CO)_4]$
- B$[Ni(H_2O)_6]^{2+} , [Ni(CN)_4]^{2-}$
- C$[Ni(H_2O)_6]^{2+} , [Ni(CO)_4]$
- D$[Fe(CN)_6]^{4-} , [Fe(CN)_6]^{3-}$
✓
Answer
Correct option: A.
$[Ni(CN)_4]^{2-} , [Ni(CO)_4]$
a
$\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{-2},\,\,\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]$ no unpaired $e^-$
$\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{-2},\,\,\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]$ no unpaired $e^-$
$\mu_{\mathrm{s}}=0$
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