Equal lengths of magnesium ribbons are taken in test tubes A and B.
Equal lengths of magnesium ribbons are taken in test tubes A and B.

Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. Amount and concentration taken for both the acids are the same. In which test tube will the fizzing occur more vigorously and why?

Answer:

Acetic acid is a mild acid, whereas HCl is a strong acid. The creation of hydrogen gas as a result of the acid’s reaction with the magnesium ribbon causes fizzing. Because HCl is such a strong acid, a lot of hydrogen gas is liberated from test tube A. As a result, more fizzing occurs in test tube A.