Question

Why does an acidic strength increase down the group?

Answer 1

Acid strength:

1. Acid strength is just a measurement of just an acid's ability to lose its H+ ion.
2. A strong acid's dissociation in solution is nearly complete, with the exception of its most concentrated solutions.

An acidic strength increase down the group is:

1. The acid strength increases as the nonmetal's size increases because the bond strength reduces as a function of size, and this has a larger influence than the electronegativity.
2. In fact, because HF is so tiny, the hydrogen-fluorine connection is extremely strong and difficult to break.