A student adds concentrated sulfuric acid to solid sodium iodide in a boiling tube. A vigorous reaction occurs, producing a mixture of gases, a solid residue, and a dark purple vapor. Which of the following lists only the reduction products of sulfuric acid formed in this reaction?
SO2(g)\text{SO}_2(g)SO2(g), S(s)\text{S}(s)S(s), and H2S(g)\text{H}_2\text{S}(g)H2S(g)
HI(g)\text{HI}(g)HI(g), SO2(g)\text{SO}_2(g)SO2(g), S(s)\text{S}(s)S(s), and H2S(g)\text{H}_2\text{S}(g)H2S(g)
I2(g)\text{I}_2(g)I2(g), SO2(g)\text{SO}_2(g)SO2(g), S(s)\text{S}(s)S(s), and H2S(g)\text{H}_2\text{S}(g)H2S(g)
SO2(g)\text{SO}_2(g)SO2(g) and S(s)\text{S}(s)S(s) only