Solid $PCl_5$ exists as $:$

  • A
    $[PCl_4]^{+} \& [PCl_6]^{-}$
  • B
    $PCl_3 \& Cl_2$
  • C
    $[PCl_4]^{-} \& [PCl_6]^{+}$
  • D
    $[PCl_3]^{+} \& [PCl_3]^{-}$

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