When hydrogen chloride is dissolved in acetic acid,the following equilibrium is established: $HCl + CH_3COOH \rightleftharpoons Cl^- + CH_3COOH_2^+$. Identify the conjugate acid-base pairs.

  • A
    $(HCl, CH_3COOH)$ and $(CH_3COOH_2^+, Cl^-)$
  • B
    $(HCl, CH_3COOH_2^+)$ and $(CH_3COOH, Cl^-)$
  • C
    $(CH_3COOH_2^+, HCl)$ and $(Cl^-, CH_3COOH)$
  • D
    $(HCl, Cl^-)$ and $(CH_3COOH_2^+, CH_3COOH)$

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