Multiple choice general knowledge Chemical Formula of Sulphuric Acid ? H2SO4 KMnO4 HCl P2SO3 Reveal answer Fill a bubble to check yourself A Correct answer Explanation Sulphuric acid (sulfuric acid) has the chemical formula H2SO4 - two hydrogen atoms, one sulfur atom, and four oxygen atoms. KMnO4 is potassium permanganate, HCl is hydrochloric acid, and P2SO3 is not a standard formula.