Question

Choose the correct representation of conductometric titration of benzoic acid vs sodium hydroxide

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

The correct answer is (C) :

(A) → (B) Free $H^+$ ions are replaced by $Na^⊕$ which decreases conductance.
(B) → (C) Un-dissociated benzoic acid reacts with $NaOH$ and forms salt which increases ions & conductance increases.
(C) → (D) After equivalence point at (3), $NaOH$ added further increases $Na^⊕$ & $OH^⊙$ ions which further increases the conductance.