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Column-I and Column-II contains four entries each. Entries of Column-I are to be matched with some entries of Column-II. One or more than one entries of Column-I may have the matching with the same entries of Column-II
\( \mathrm{P} \)
Column-I
Column-II
W
(A) \( \mathrm{CH}_{3} \mathrm{COOH}\left(\mathrm{p} K_{a}=4.74,0.1 \mathrm{M}\right) \)
(P) Acidic buffer at its maximum capacity
\[
+\mathrm{CH}_{3} \mathrm{COONa}(0.1 M)
\]
(B) \( \mathrm{CH}_{3} \mathrm{COOH}(0.1 M)+\mathrm{HCl}(0.1 \mathrm{M}) \)
(Q) Buffer solution
(C) \( \mathrm{CH}_{3} \mathrm{COOH}\left(\mathrm{p} K_{a}=4.74,0.1 M\right)+\mathrm{NH}_{4} \mathrm{OH} \)
(R) \( \mathrm{pH}7 \) at \( 25^{\circ} \mathrm{C} \)
\[
\left(\mathrm{p} K_{b}=4.74,0.1 \mathrm{M}\right)
\]
(D) \( \mathrm{CH}_{3} \mathrm{COONa}(300 \mathrm{~mL} \) of \( 0.1 \mathrm{M})+\mathrm{HCl} \)
(S) \( \mathrm{pH}=7 \) at \( 25^{\circ} \mathrm{C} \)
(100 \( \mathrm{mL} \) of \( 0.1 \mathrm{M} \) )
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