Which of the following statements is not true about the $NaCl$ structure?

  • A
    $Cl^{-}$ ions are in $fcc$ arrangement.
  • B
    $Na^{+}$ ions have a coordination number of $4$.
  • C
    $Cl^{-}$ ions have a coordination number of $6$.
  • D
    Each unit cell contains $4$ $NaCl$ molecules.

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