Which of the following will not conduct electricity in aqueous solution?

Which of the following,when dissolved in water,forms a solution that is non-conducting?

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:

Which of the following substances,when dissolved in water,will give a solution that does not conduct electricity?

Given the two concentrations of $HCN$ $(K_a = 10^{-9})$ are $0.1 \ M$ and $0.001 \ M$ respectively. What will be the ratio of their degrees of dissociation?

Strong electrolytes are those which