The compound that have the highest boiling point is HF, hydrogen fluoride. The correct option is A.
The temperature at which a liquid's vapor pressure matches the pressure surrounding the liquid is known as the boiling point of that substance.
Hydrogen fluoride ha the highest electronegativity among HCl, HI, and, HBr, and it can form hydrogen bond quickly compared to other compounds, that's why HF has the highest boiling point.
Thus, the correct option is A, HF.
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