• question_answer In the equilibrium                 $C{{H}_{3}}COOH+HF$⇄ $C{{H}_{3}}COO{{H}_{2}}^{+}+{{F}^{-}}$       [BHU 1987] A)                 ${{F}^{-}}$is the conjugate acid of $C{{H}_{3}}COOH$ B)                 ${{F}^{-}}$is the conjugate base of $HF$ C)                 $C{{H}_{3}}COOH$ is the conjugate acid of $C{{H}_{3}}COO{{H}_{2}}^{+}$ D)                 $C{{H}_{3}}COO{{H}_{2}}^{+}$ is the conjugate base of $C{{H}_{3}}COOH$

$C{{H}_{3}}COOH+HF$⇌$C{{H}_{3}}COOH_{2}^{+}+{{F}^{-}}$.$HF$ gives ${{H}^{+}}$ to the $C{{H}_{3}}COOH$. So it is a conjugate base of HF.