Aqueous solution of which of the following compounds is the best conductor of electric current?
| 1. | Acetic acid, \(\mathrm{C_{2} H_{4} O_{2}}\) | 2. | Hydrochloric acid, \(\mathrm{HCl}\) |
| 3. | Ammonia, \(\mathrm{N H_{3}}\) | 4. | Fructose, \(\mathrm{C_{6} H_{12} O_{6}}\) |
The strongest acid among the following compounds is:
| 1. | HClO3 | 2. | HClO4 |
| 3. | H2SO3 | 4. | H2SO4 |