Aqueous solution of which of the following compounds is the best conductor of electric current?

$A$ weak monobasic acid is $10 \%$ dissociated in $0.05 \ M$ solution. What is its percentage dissociation in $0.10 \ M$ solution (in $\%$)?

If $\alpha$ is the degree of ionization,$C$ is the concentration of a weak electrolyte,and $K_a$ is the acid ionization constant,then the correct relationship between $\alpha$,$C$,and $K_a$ is:

Calculate the percentage dissociation of a $0.05 \ M$ solution of a weak electrolyte if its molar conductivity and molar conductivity at infinite dilution are respectively $3.3 \ \Omega^{-1} \ cm^2 \ mol^{-1}$ and $132 \ \Omega^{-1} \ cm^2 \ mol^{-1}$. (in $\%$)

What is the molar concentration of acetic acid if the value of its dissociation constant is $1.8 \times 10^{-5}$ and the degree of dissociation is $0.02$?

Dissociation constant and degree of dissociation of a weak acid are $1.8 \times 10^{-5}$ and $0.03$ respectively. What will be the concentration of the solution of the weak acid (in $M$)?