Chemistry · EQUILIBRIUM

Consider the following statements regarding salt hydrolysis and buffer solutions: (A) The degree of hydrolysis of a salt formed from a weak acid and a weak base is independent of the initial concentration of the salt. (B) Aqueous solution of \( \text{NH}_4\text{Cl} \) has \( \text{pH} < 7 \) due to cationic hydrolysis. (C) An acidic buffer has its maximum buffer capacity when the molar concentration ratio of conjugate base to acid is equal to 1. (D) Diluting a buffer solution with an equal volume of pure water halves its pH value. Choose the correct answer from the options given below:

1. A
   (A), (B) and (D) only
2. B
   (A), (B) and (C) only
3. C
   (B), (C) and (D) only
4. D
   (A) and (C) only