Which of the following is a strong electrolyte?

The degree of dissociation of $0.1 \ N$ $CH_3COOH$ is (given $K_a = 1 \times 10^{-5}$) approximately $......$

Water cannot be made conducting by adding a small amount of any of the following,except:

For a solution,if $K = 4.41 \times 10^{-5}$ and $C = 0.1 \, M$,then what is the value of $\alpha$?

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 of the following is a strong electrolyte?