Final answer:
The equilibrium concentration of H2SO4 in a 2 M aqueous solution would be 0 M because sulfuric acid is a strong acid that dissociates completely in water.
Step-by-step explanation:
To understand the equilibrium concentration of H2SO4 in an aqueous solution, we need to consider how sulfuric acid behaves in water. Sulfuric acid is a strong acid, which means it dissociates completely in water. When a 2 M solution of H2SO4 is prepared, it dissociates to form H+ ions and SO42- ions. Since the dissociation is complete, the equilibrium concentration of undissociated H2SO4 is effectively 0 M (Option A).