Which of the following solution of KCl has the lowest value of specific conductance :(A) 1 M (B) 0.1 M (C) 0.01 M (D) 0.001 M

To determine which of the given solutions of KCl has the lowest value of specific conductance, we need to understand that specific conductance is a measure of the ability of a solution to conduct electric current. It is influenced by the concentration of ions in the solution.

In general, as the concentration of ions in a solution increases, the specific conductance also increases. Therefore, the solution with the lowest concentration of KCl will have the lowest specific conductance.

Looking at the options provided, we can see that the concentration of KCl decreases from option (A) to option (D). Therefore, the solution with the lowest value of specific conductance is option (D) with a concentration of 0.001 M.