Question

Which one of the following acids is 100% ionized in aqueous solution?

A) HCl
B) H2SO4
C) HClO4
D) All of them

Answer 1

Strong acids and bases are 100% ionized in aqueous solution.

Step-by-step explanation:

Strong acids and bases are 100% ionized in aqueous solution, while weak acids and bases are less than 100% ionized. HCl, H2SO4, and HClO4 are all strong acids, so they are 100% ionized in aqueous solution. Therefore, the correct answer is option D) All of them.