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

Options

A. (P)
B. (Q)
C. (R )
D. (S)

Explanation

`Ag(NO_3)(aq)+KCl(aq) to AgCl downarrow +KNO_3(aq)`
`implies Cl^(-)` ions being replaced by `NO_3^(-) ` ions `implies` (i) Till all KCl `(Cl^(-) ions)` gets consumed by `N)_3^(-),Cl^(-)` will get replaced by `NO_3^(-)`.
`K^(+)Cl^(-) underset to(AgNo_3) K^(+)NO_3^(-)`
(ii) When all`Cl^(-)` is gone, `AgNO_3` will not get ppt. anumore
`K^(+)cancel(cl) underset to(AgNO_3)Ag^(+)+K^(+)NO_3^(-)`
Conductance is bound to increase mow .
There should be no reason for the conductance to fall-(or rise) initially to a large extent .Even the fall /rise will be linear (either decreasing /increasing )
`implies` D is the most approprite answer.