Of the hydrogen halides,only ________ is a weak acid.
A)HCl (aq)
B)HBr (aq)
C)HF (aq)
D)HI (aq)
E)They are all weak acids.

Question

Quizplus · Accepted Answer

HF is the only weak acid among the hydrogen halides because its bond between hydrogen and fluorine is strong due to the high electronegativity of fluorine. This leads to the hydrogen ion (H+) being less likely to dissociate in water and thus making it a weak acid. In contrast, HCl, HBr, and HI all have weaker bonds between hydrogen and their respective halogens, making them stronger acids.

Of the Hydrogen Halides,only ________ Is a Weak Acid