When comparing acid strength of binary acids HX, as X varies within a particular group of the periodic table, which one of these factors dominates in affecting the acid strength
A) bond strength
B) electron withdrawing effects
C) percent ionic character of the H-X bond
D) solubility
E) Le Châtelier's principle

Question

Quizplus · Accepted Answer

Bond strength is the dominant factor affecting the acid strength of binary acids HX as X varies within a particular group of the periodic table. As you move down a group, the size of the X atom increases, leading to a longer H-X bond that is weaker and more easily dissociated to release H+ ions, thus increasing acid strength.

When Comparing Acid Strength of Binary Acids HX, as X