Chemistry Question from JEE Main 2026 · 28 January, Shift 2

For strong electrolyte $\Lambda_m$ increases slowly with dilution and can be represented by the equation:

$$\Lambda_m = \Lambda_m^0 - A\sqrt{c}$$

Molar conductivity values of the solutions of strong electrolyte AB at $18^\circ \text{C}$ are given below:

$$\begin{array}{|c|c|c|c|c|} \hline c \, [\text{mol L}^{-1}] & 0.04 & 0.09 & 0.16 & 0.25 \\\hline \Lambda_m \, [\text{S cm}^2 \text{ mol}^{-1}] & 96.1 & 95.7 & 95.3 & 94.9 \\\hline \end{array}$$

The value of constant $A$ based on the above data [in $\text{S cm}^2 \text{ mol}^{-1}/(\text{mol L}^{-1})^{1/2}$] unit is: