Question

Match the List-I and List-II

List-I	List-II
(A) The limits of pH values of buffer solution.	(i) $5\times {10}^{-12}$
(B) The $[H_{3}O{]}^{+}$ concentration in 0.001 M $Ca(OH{)}_2$ solution.	(ii) Equal
(C) The buffer.capacity of a Solution is maximum when conc. of salt to that of acid is:	(iii) 1st order reaction
(D) hydrolysis of ethyl acetate	(iv) $p{K}_a\pm 1$ in acidic solution.

• A. (A) - iv (B)-ii (C)-i (D)-iii
• B. (A) - iv (B)-i (C)-iii (D)-ii
• C. (A) - i (B)-iv (C)-ii (D)-iii
• D. (A) - iv (B)-i (C)-ii (D)-iii

Answer 1

Answer: (A), (D)

The correct options are
A (A) - iv (B)-ii (C)-i (D)-iii
D (A) - iv (B)-i (C)-ii (D)-iii

(A) The limits of pH values of buffer solution is $p{K}_a\pm 1$ in acidic solution.

(B) The $[H_{3}O{]}^{+}$ concentration in 0.001 M $Ca(OH{)}_2$ solution is $5\times {10}^{-12}$.

(C) The buffer.capacity of a Solution is maximum when conc. of salt to that of acid is equal.

(D) hydrolysis of ethyl acetate is a first order reaction.

So the correct match is (A) - iv (B)-i (C)-ii (D)-iii.

Hence option D is correct.