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

`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

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Text Solution

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The correct Answer is:
D
`[K^(+)(aq)+Cl^(-)(aq)]+Ag^(+)(aq)+NO_(3)(aq)rarrk^(+)(aq)+NO_(3)^(-)(aq)+AgCl(g)`
Initially the conductance is due to `K^(+)` and `Cl^(-)` ions
On adding `AgNO_(3)`. Precipitate of `AgCl` is formed. Thus some `Cl^(-)` ions are replaced of `NO_(3)` ions. As both have nearly the same conductance, the conduc tance remains constant. After the end point, addition of `AgNO_(3)` will igve `Ag^(+)` and `NO_(3)^(-)` ions in the solution. hence conductance will increase rapidly.
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