Which of the following aqueous solutions is the best electrical conductor?

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 $mL$)?

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?

Which one is the strongest electrolyte among the following?

Which of the following equimolar solutions is the best conductor of electricity at the same temperature?

The degree of ionization of a compound depends on