$HF + HClO_4 \rightleftharpoons H_2F^{+} + ClO_4^-$ and $H_2O + H_2PO_4^- \rightleftharpoons H_3O^{+} + HPO_4^{2-}$ Select the group of acidic species present on the right side of the equilibrium.

  • A
    $H_2F^{+}, HPO_4^{2-}$
  • B
    $H_3O^{+}, H_2F^{+}$
  • C
    $ClO_4^-, H_3O^{+}$
  • D
    $ClO_4^-, HPO_4^{2-}$

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