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

Step-by-step solution

C 6 H 5 C WA OOH + Na O SB H → C 6 H 5 C Salt OONa + H 2 O Initially the conductance is low due to the feeble ionisation of acetic acid. On the addition of base, there is decrease in conductance( A → B ) not only due to the replacement of H + by Na + but also suppresses the dissociation of benzoic acid due to common ion benzoate. But very soon, the conductance increases( B → C ) on adding NaOH as NaOH neutralises the un-dissociated C 6 H 5 COOH to C 6 H 5 COONa which is the strong electrolyte. This increase in cond