The correct order of equivalent conductance of $LiCl$, $NaCl$ and $KCl$ at infinite dilution is

Molar conductivity of $0.01 \ M$ $HCl$ solution is $400.0 \ \Omega^{-1} \ cm^{2} \ mol^{-1}$. Calculate the conductivity of $HCl$ solution.

Which of the following statements regarding the solution of an electrolyte is not correct?

The molar conductivity of $KCl$ solutions at different concentrations at $298 \ K$ is given below:

$c / mol \ L^{-1}$	$\Lambda_m / S \ cm^2 \ mol^{-1}$
$0.000198$	$148.61$
$0.000309$	$148.29$
$0.000521$	$147.81$
$0.000989$	$147.09$

Show that a plot of $\Lambda_m$ versus $c^{1/2}$ is a straight line. Determine the values of $\Lambda_m^o$ and $A$ for $KCl$.

Molar conductivity of a weak acid $HQ$ of concentration $0.18 \ M$ was found to be $1/30$ of the molar conductivity of another weak acid $HZ$ with concentration of $0.02 \ M$. If $\lambda_{Q^{-}}^0 = \lambda_{Z^{-}}^0$,then the difference of the $pK_a$ values of the two weak acids $(pK_a(HQ) - pK_a(HZ))$ is . . . . . . (Nearest integer).
[Given: degree of dissociation $(\alpha)$ $\ll 1$ for both weak acids,$\lambda^0$: limiting molar conductivity of ions]

What is the $SI$ unit of molar conductivity?