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AgNO(3)(aq.) was added to an aqeous KCl ...

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

A

(P)

B

(Q)

C

( R )

D

(S)

Text Solution

Verified by Experts

The correct Answer is:
D
`Ag(NO_(3))(aq) +KCl(aq) to AgCl darr +KNO_(3)(aq)`
`rArr Cl^(-)` ions being replaced by `NO_(3)^(-)` ions.
`rArr ` (i) Till all KCl (`Cl^(-)` ions) gets consumed by `NO_(3)^(-),Cl^(-)` will get replaced by `NO_(3)^(-)`.
`K^(+) Cl^(-) overset(AgNO_(3))to K^(+) NO_(3)^(-)`
(ii) When all `Cl^(-)` is gone, `AgNO_(3)` will not get ppt. anymore.

Conductance is bound to increase now.
`rArr` D is the most appropriate answer.
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