alleryStart learning →Which set lists six common strong acids?
AHClO4, HCl, HBr, HI, HNO3 and H2SO4
BHClO4, HF, HBr, HI, HNO3 and H2SO4
CHClO4, HCl, HBr, HI, HNO2 and H2SO3
DHClO3, HCl, HBr, HI, HNO3 and H2CO3
Answer & Solution
Correct answer: A. HClO4, HCl, HBr, HI, HNO3 and H2SO4
1. The six common strong acids are perchloric, hydrochloric, hydrobromic and hydroiodic acid.
2. The list is completed by nitric acid and sulfuric acid.
3. Each of these is completely dissociated in aqueous solution.
4. Hydrofluoric acid, nitrous acid, sulfurous acid and carbonic acid are all weak, not strong.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 14 "Acid-Base Equilibria", section 14.3 Relative Strengths of Acids and Bases_
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