`AgNO_(3(aq)` was added to an aqueous KCl solution gradully and the conductivity of the solution was measured. The plot of conductance `(Lambda)` versus the volume of `AgNO_(3)` is

Answer

D

Explanation

(d) The plot(s) represents the correct trend. The reaction is a precepitation reaction
`underset(("White ppt"))(AgNO_(3)(aq))+KCl(aq) to AgCl(s)+KNO_(3(aq))`
`Ag^(+)(aq)+NO_(3)^(-)(aq)+K^(+)(aq)+Cl^(-)(aq) to AgCl(s)+K^(+)(aq)+NO_(3)^(-)(aq)`
In this titration, known as conductometric litration, initially the conductance of the solution does not change much because the `Cl^(-)` ions are getting precipitated as AgCl and are replaced by `NO_(3)^(-)` ions Both the ions have nearly the same ionic conductnace Once the precipitation reaction is complete, the further addition of `AgNO_(3)` will increase the concentration of `NO_(3)^(-)` ions in the solution. As a result, the conductance of solution will increase sharply as shown in the curve(s).