Which of the following statements is incorrect?

  • A
    $Ni(CO)_4$ is tetrahedral,paramagnetic
  • B
    $[Ni(CN)_4]^{2-}$ is square planar,diamagnetic
  • C
    $Ni(CO)_4$ is octahedral,diamagnetic
  • D
    $[NiCl_4]^{2-}$ is tetrahedral,paramagnetic

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