Chapter 19, Problem 118SAE

The gas evolved at e anode when ${\text{K}}_{\text{2}}{\text{SO}}_{\text{4}}\left(\text{aq}\right)$ is electrolyzed between Pt electrodes most likely to be (a) ${\text{O}}_2$ (b) ${\text{H}}_{\text{2}}$ (C) ${\text{SO}}_2$ (d) ${\text{SO}}_2$ (e) a mixture of sulfur oxides.