Which of the following is the correct IUPAC name for the chemical HF?

• A. Hydrofluoric acid
• B. Fluorine hydride
• C. Hydrogen fluoride acid
• D. Fluoric acid

Answer: (A)

Verified step by step guidance

1. Recognize that HF is a binary compound consisting of hydrogen and fluorine.
2. Understand that when HF is in aqueous solution, it behaves as an acid and is named according to acid nomenclature rules.
3. Recall that binary acids are named with the prefix 'hydro-', followed by the root of the nonmetal element, and ending with the suffix '-ic acid'.
4. Apply this rule to fluorine: the root is 'fluor-', so the acid name becomes 'hydrofluoric acid'.
5. Note that the other options either do not follow IUPAC naming conventions or are incorrect forms of the acid name.