Final answer:
The gas obtained in the reaction between iron (Fe) and sulfuric acid (H2SO4) is hydrogen (H2).
Step-by-step explanation:
In the reaction between iron (Fe) and sulfuric acid (H2SO4), the gas obtained is hydrogen (H2). This is evident from the balanced chemical equation provided:
Fe(s) + H2SO4(aq) => FeSO4(aq) + H2(g)
During the reaction, each atom of Fe reacts with H2SO4 resulting in the formation of iron (II) sulfate (FeSO4) and hydrogen gas (H2) being released. This type of reaction where a metal reacts with an acid to produce a salt and hydrogen gas is a single displacement reaction.