Among halogen acids, HX (X = F, Cl, Br, I), HI is the strongest acid.
Hydroiodic Acid
Depends on what you mean by dangerous and the molarity of the acid. The strongest acid is Hydroiodic Acid or HI
Also hydroiodic acid or HI solution.
Hydroiodic acid.
HI is the formula. the acid is called hydroiodic acid
HI is Hydrogen iodide. Hydrogen iodide forms hydroiodic acid when made into an aqueous solution. It is a strong acid that is commonly used in the illegal production of methamphetamine. Sales of hydroiodic acid are closely monitored.
Hydrobromic acid has a pKa of −9, making it a stronger acid than hydrochloric acid, but not as strong as hydroiodic acid. Hydrobromic acid is one of the strongest mineral acids known.
Hydroiodic acid
Assuming you are asking about the base I-, the conjugate acid is HI, hydroiodic acid. Since hydroiodic acid is a strong acid, it can be concluded that iodide (I-) is a weak conjugate base.
Hydroiodic acid
The formula for the strong acid hydroiodic acid is HI.
Hydroformic acid does not exist. You may have mistaken it with formic acid, or hydrobromo acid.Formic acid (systematically called methanoic acid) is the simplest carboxylic acid. Its formula is HCOOH or CH2O2. It is an important intermediate in chemical synthesis and occurs naturally, most notably in the venom of bee and ant stings.Hydrobromic acid is a strong acid formed by dissolving the diatomic molecule hydrogen bromide in water. Its molecular formula is HBr, an ionic acid with a pKa of −9, making it a stronger acid than hydrochloric acid, but not as strong as hydroiodic acid. Hydrobromic acid is one of the strongest mineral acids known.