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 \( (CH_3COOH) \) is added to test tube B. In which test tube will the fizzing occur more vigorously and why ?


Answer :

Fizzing occurs more vigorously in Test Tube A.

Explanation


Acetic acid (CH3COOH) is a weak acid whereas hydrochloric acid (HCl) is a strong acid. Fizzing occurs in the test tube due to the evolution of hydrogen gas by the action of acid on magnesium ribbon. Since hydrochloric acid is a strong acid a large amount of hydrogen gas is liberated in the test tube A.

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