Nickel combines with a uninegative monodentate ligand $(X^{-})$ to form a paramagnetic complex $[NiX_4]^{2-}$. The hybridisation involved and the number of unpaired electrons present in the complex are respectively:

  • A
    $sp^3$, two
  • B
    $dsp^2$, zero
  • C
    $dsp^2$, one
  • D
    $sp^3$, one

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Similar Questions

Which of the following complex ions does not contain any $d$-electrons in the central metal atom?

$[NiCl_{4}]^{2-}$ is paramagnetic while $[Ni(CO)_{4}]$ is diamagnetic though both are tetrahedral. Why?

Match List-$I$ with List-$II$ and select the correct answer using the codes given below the lists $:$
List-$I$ $(Compounds)$List-$II$ $(Hybridization)$
$(a)$ $[Ni(NH_3)_6]^{+2}$$(i)$ $sp^3 d^2$
$(b)$ $[PtCl_4]^{-2}$$(ii)$ $dsp^2$
$(c)$ $[Ni(CO)_4]$$(iii)$ $sp^3$
$(d)$ $[Co(OX)_3]^{-3}$$(iv)$ $d^2 sp^3$

Which of the following has the maximum number of unpaired electrons?

In solid $CuSO_4 \cdot 5H_2O$,copper is coordinated to:

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