Which is the stronger acid: H-F or H-I?
A)H-F, because the electronegativity of fluorine is higher than that of iodine making the H-F bond more polar and more likely to release the hydrogen ion to solution.
B)H-F, because acid strength for binary acids decreases "down the group" of the periodic table.
C)H-I, because iodine releases the hydrogen in order to form (s)at room temperature.
D)H-I, because the H-I bond is weaker and so it is easier to break to form hydrogen ions.

Question

Which is the stronger acid: H-F or H-I?
A)H-F, because the electronegativity of fluorine is higher than that of iodine making the H-F bond more polar and more likely to release the hydrogen ion to solution. 
B)H-F, because acid strength for binary acids decreases "down the group" of the periodic table. 
C)H-I, because iodine releases the hydrogen in order to form (s)at room temperature. 
D)H-I, because the H-I bond is weaker and so it is easier to break to form hydrogen ions.

Quizplus · Accepted Answer

The strength of an acid is determined by its ability to release hydrogen ions. In this case, H-I is a stronger acid because the bond between H and I is weaker compared to the bond between H and F. Therefore, it is easier to break the H-I bond to form hydrogen ions, making H-I a stronger acid.

Which Is the Stronger Acid: H-F or H-I