Why is solid $\mathrm{NaCl}$ a bad conductor of electricity?

What are the products of electrolysis when an aqueous solution of sodium chloride is electrolysed?

What happens when $\mathrm{NaOH}$ is added to ${\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3$ solution drop by drop and finally in excess. Give balanced equations only.

In the extraction of sodium by electrolytic method, fused sodium chloride is used instead of aqueous solution of sodium chloride. What is the reason?

What happens when sodium bromide is heated with hot conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$?

Give two uses of potassium chlorate.

What happens to the $\mathrm{pH}$ of the sodium chloride solution on electrolysis?

Give one use of potassium chlorate.