KVPY2020ChemistryIonic Equilibrium
A weak acid is titrated with a weak base. Consider the following statements regarding the pH of the solution at the equivalence point: (i) pH depends on the concentration of acid and base. (ii) pH is independent of the concentration of acid and base (iii) pH depends on the pK a of acid and pK b of base. (iv) pH is independent of the pK a of acid and pK b of base. The correct statements are:-
Options
- Aonly ( i ) and ( iii )
- Bonly ( i ) and ( iv )
- Conly ( ii ) and ( iii )
- Donly ( ii ) and ( iv )
Correct answer
C. only ( ii ) and ( iii )
Step-by-step solution
For salts of weak acid and weak base pH = 7 + 1 2 pK a - pK b pH is independent of concentration of acid and base