Question

The degree of hydrolysis of which of the following salt is independent of the concentration of salt solution ?

• A. CH₃COONa
• B. NH₄Cl
• C. CH₃COONH₄
• D. NaCl

Answer 1

Answer: (C)

CH₃COONH₄

Answer 2

It is the salt of weak acid and weak base, hence its degree of hydrolysis will be independent of concentration $\mathrm { h } = \sqrt { \frac { \mathrm { K } _ { \mathrm { w } } } { \mathrm { K } _ { \mathrm { a } } \times \mathrm { K } _ { \mathrm { b } } } }$ .