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  4. AgNO3(aq) was added to an aqueous KCl solution gradually and the conductivity of the solution was measured. The plot of conductivity ( Lambda) versus the volume of AgNO3 is <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-78pid9cpvk3iutha.jpg />

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Q. $AgNO_{3}(aq)$ was added to an aqueous $KCl$ solution gradually and the conductivity of the solution was measured. The plot of conductivity $\left(\Lambda\right)$ versus the volume of $AgNO_{3}$ is
Question

NTA AbhyasNTA Abhyas 2022

Solution:

$AgNO _{3}+ KCl ( aq ) \rightarrow AgCl ( s )+ KNO _{3}( aq )$
Initially there is aq. $KCl$ solution now as solution of $AgNO_{3}$ is added, $AgCl\left(s\right)$ is formed. Hence conductivity of solution is almost compensated (or slightly increase) by the formation of $KNO_{3}$ . After end point conductivity increases more rapidly because addition of excess $AgNO_{3}$ solution.