What is a strong electrolyte? Explain the relation between molar conductivity and the concentration of a solution with a strong electrolyte.

(N/A) Strong electrolyte: Electrolytes that undergo complete or maximum ionization in their aqueous solution are known as strong electrolytes. Their solutions exhibit high conductivity. Examples include $KCl, NaCl, KNO_{3}, NaNO_{3}, MgCl_{2}, CaCl_{2}, MgSO_{4}$,etc. Salts of strong acids and strong bases are typically strong electrolytes.
$(b)$ Concentration of solution and value of $\Lambda_{m}$: For strong electrolytes,$\Lambda_{m}$ increases slowly with dilution and can be represented by the Kohlrausch equation:
$\Lambda_{m} = \Lambda_{m}^{\circ} - A c^{1/2}$
Where:
$\Lambda_{m} =$ molar conductivity of the strong electrolyte.
$\Lambda_{m}^{\circ} =$ limiting molar conductivity of the strong electrolyte.
$c =$ concentration of the solution in $mol \ L^{-1}$.
$A =$ constant,which represents the negative slope of the graph.

Strong electrolyte	$NaCl, KCl, CaCl_{2}, MgSO_{4}$
Valency or Type	$1-1, 1-1, 2-1, 2-2$

The value of $A$ depends on: $(i)$ the type of electrolyte (charge on ions) like $1-1, 2-1, 2-2$ etc.,$(ii)$ temperature,and $(iii)$ pressure.