Match Column-$I$ with Column-$II$ based on the $pK_a$ values of the given carboxylic acids:
Column-$I$Column-$II$
$(A)$ $CF_3COOH$$(i)$ $3.41$
$(B)$ Benzoic acid$(ii)$ $4.76$
$(C)$ $CH_3COOH$$(iii)$ $0.23$
$(D)$ $4$-nitrobenzoic acid$(iv)$ $4.20$

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(A) The $pK_a$ values for the given acids are as follows:
$(A)$ $CF_3COOH$: $0.23$ (Strongest acid due to electron-withdrawing $-F$ groups)
$(B)$ Benzoic acid: $4.20$
$(C)$ $CH_3COOH$: $4.76$ (Weakest acid)
$(D)$ $4$-nitrobenzoic acid: $3.41$ (Stronger than benzoic acid due to electron-withdrawing $-NO_2$ group)
Therefore,the correct matching is: $(A$ $\rightarrow iii), (B$ $\rightarrow iv), (C$ $\rightarrow ii), (D$ $\rightarrow i)$.

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