Thank you for reporting, we will resolve it shortly
Q.
Which one of the following ions has highest limiting molar conductivity ?
Electrochemistry
Solution:
$\begin{matrix}Ion&Na^{+}&K^{+}&Mg^{+}&Ca^{+}\\ \Lambda^{\circ}_{m}&50.70&73.50&106.0&119.0\end{matrix}$
$(S\,cm^2\,mol^{-1})$
The size of hydrated $Na^+$ ion is largest and that of $Ca^{2+}$ is the smallest. Hence they follow the above order.