Which of the following pairs of compounds do not exist?

  • A
    $CuI_2, FeCl_3$
  • B
    $CuI_2, FeI_3$
  • C
    $[CuI_4]^{2-}, FeI_3$
  • D
    $[CuI_4]^{2-}, FeI_2$

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