MCQ
Which of the following complexes is diamagnetic
  • $Ni{(CO)_4}$
  • B
    $Ni{(C{l_4})^{2 - }}$
  • C
    $Ni(Br)_4^{2 - }$
  • D
    $NiC{l_2}.4{H_2}O$

Answer

Correct option: A.
$Ni{(CO)_4}$
a
(a) $CO$ is a strong ligand so induce pairing of electrons and hence $Ni{(CO)_4}$ is diamagnetic.

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