AgNO_3(aq) was added to an aqueous KCl solution gradually and the conductivity of the solution was measured. The plot of conductance $\mathrm{\Lambda }$ versus the volume of AgNO₃ is

Graph of (AgNO₃ + KCl) conductance and volume of AgNO₃ is like option (4)

AgNO₃ + KCl$\to$AgCl_(s) + KNO_3(aq)

after the end point strong electrolyte KNO₃ is formed hence conductivity increases.