Answer
a. $CH_3OH$ is a nonelectrolyte.
b. $MgCl_2$ is a strong electrolyte.
c. $HClO$ is a weak electrolyte.
Work Step by Step
When the reaction occurs, the solute is divided into ions? If the answer is no, it is a nonelectrolyte. If the answer is yes, it can be a strong or weak electrolyte. Its type can be identified following this:
If there is only one arrow to the right (representing dissociation), the solute is a strong electrolyte.
If there are two arrows (one for dissociation and another one for recombination), the solute is a weak electrolyte.