Theory of acids and bases

pH of acids

Exercise 10

    

Which statement about $HCl$ is false?

a) $HCl$ is a strong acid b) $HCl$ is completely dissociated in water c) $[HCl]$ in a $HCl$ solution is negligible d) $[H_3O^+]$ in a $HCl$ solution is negligible

The statement d) " $[H_3O^+]$ in a $HCl$ solution is negligible" is false