Ostwald's dilution law gives satisfactory results with:

It has been observed that gaseous hydrogen chloride is a very poor conductor of electricity,but a solution of hydrogen chloride gas in water is a good conductor of electricity. This is due to the fact that:

The molar conductivity of $0.01 \ M$ acetic acid at $25^{\circ} C$ is $16.5 \ \Omega^{-1} \ cm^2 \ mol^{-1}$ and its molar conductivity at infinite dilution is $390.7 \ \Omega^{-1} \ cm^2 \ mol^{-1}$. What is its degree of dissociation?

How much water must be added to $300 \ mL$ of $0.2 \ M$ solution of $CH_3COOH$ $(K_a = 1.8 \times 10^{-5})$ for the degree of ionisation $(\alpha)$ of the acid to double (in $mL$)?

Which from the following concentrations of a weak electrolyte solution exhibits maximum molar conductivity (in $M$)?

Pure water does not conduct electricity because it