Answer
$HCl$ is a strong acid.
Work Step by Step
- $HCl$ is on the list of common strong acids:
$HBr, HI, HCl, HClO_4, HClO_3, H_2SO_4$ and $HNO_3.$
- You can also analyze the table $14.2$ (Page 624), and see that, the $K_a$ value for $HCl$ is a large value, therefore, it is a strong acid.
