are diprotic acids strong acids?
Diprotic acids, such as sulfuric acid (H2SO4), carbonic acid (H2CO3), hydrogen sulfide (H2S), chromic acid (H2CrO4), and oxalic acid (H2C2O4) have two acidic hydrogen atoms. ... When sulfuric acid is classified as a strong acid, students often assume that it loses both of its protons when it reacts with water.