\begin{tabular}{|l|l|l|c|} \hline \multicolumn{2}{|c|}{ Column-I } & \multicolumn{2}{c|}{\begin{....
0\begin{tabular}{|l|l|l|c|}
\hline \multicolumn{2}{|c|}{ Column-I } & \multicolumn{2}{c|}{\begin{tabular}{c}
Column-II \\
(pH of resulting solution)
\end{tabular}} \\
\hline (A) & Basic Buffer & (P) & \( \mathrm{pK}_{\mathrm{a}}+\log \frac{[\text { salt] }}{[\text { acid] }} \) \\
\hline (B) & \begin{tabular}{l}
Salt of strong \\
acid and weak \\
base
\end{tabular} & (Q) & \( \frac{\mathrm{pK}_{\mathrm{w}}+\mathrm{pK}_{\mathrm{a}}+\log \mathrm{c}}{2} \) \\
\hline (C) & \begin{tabular}{l}
Salt of weak acid \\
and strong base
\end{tabular} & (R) & \( \frac{\mathrm{pK}_{\mathrm{w}}-\mathrm{pK}_{\mathrm{b}}-\log \mathrm{c}}{2} \) \\
\hline (D) & Acidic Buffer & (S) & \( 14-\mathrm{pK}_{\mathrm{b}}-\log \frac{\text { [salt] }}{\text { [base] }} \) \\
\hline
\end{tabular}
(1) \( \mathrm{A} \rightarrow \mathrm{P} ; \mathrm{B} \rightarrow \mathrm{Q} ; \mathrm{C} \rightarrow \mathrm{R} ; \mathrm{D} \rightarrow \mathrm{S} \)
(2) \( \mathrm{A} \rightarrow \mathrm{S} ; \mathrm{B} \rightarrow \mathrm{R} ; \mathrm{C} \rightarrow \mathrm{Q} ; \mathrm{D} \rightarrow \mathrm{P} \)
(3) \( \mathrm{A} \rightarrow \mathrm{R} ; \mathrm{B} \rightarrow \mathrm{Q} ; \mathrm{C} \rightarrow \mathrm{P} ; \mathrm{D} \rightarrow \mathrm{S} \)
(4) \( \mathrm{A} \rightarrow \mathrm{R} ; \mathrm{B} \rightarrow \mathrm{Q} ; \mathrm{C} \rightarrow \mathrm{S} ; \mathrm{D} \rightarrow \mathrm{P} \)
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