Chose the correct code \begin{tabular}{|l|l|c|c|} \hline \multicolumn{2}{|c|}{ Column-I } & \mul...
0Chose the correct code
\begin{tabular}{|l|l|c|c|}
\hline \multicolumn{2}{|c|}{ Column-I } & \multicolumn{2}{c|}{ Column-II } \\
\hline (P) & \( p K_{b} \) of \( X^{-}\left(K_{a}\right. \) of \( \left.\mathrm{HX}=10^{-6}\right) \) & \( \mathbf{( 1 )} \) & \( 6.9 \) \\
\hline (Q) & \( \mathrm{pH} \) of \( 10^{-8} M \mathrm{HCl} \) & \( \mathbf{( 2 )} \) & 8 \\
\hline (R) & \( \mathrm{pH} \) of \( 10^{-2} M \) acetic acid solution (Take \( K_{a} \) of acetic acid \( \left.=1.6 \times 10^{-5}\right) \) & \( \mathbf{( 3 )} \) & \( 10.7 \) \\
\hline (S) & \( \mathrm{pOH} \) of a solution obtained by mixing equal volumes of solution with pH 3 and 5. & \( \mathbf{( 4 )} \) & \( 3.4 \) \\
\hline
\end{tabular}
Codes :
\( \begin{array}{lllll} & \text { P } & \text { Q } & \text { R } & \text { S } \\ \text { (a) } & 1 & 2 & 4 & 3 \\ \text { (b) } & 4 & 3 & 2 & 1 \\ \text { (c) } & 2 & 1 & 4 & 3 \\ \text { (d) } & 1 & 2 & 3 & 4\end{array} \)
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