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Equal lengths of magnesium ribbons are t...

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_(3)COOH)` is added to test tube B. Amount and concentration taken for both the acids are same. In which test tube will the fizzing occur more vigorously and why?

Text Solution

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We know that hydrochloric acid (HCl) is a strong acid and acetric acid `(CH_(3)COOH)` is weak acid. Being a strong acid, HCl solution contains a much greater amount of hydrogen ions in it. Due to this , the fizzing will occur more vigorously in test tube A . The fizzing is due to the evolution of `H_2` gas which is formed by the action of acid on the magnesium ribbon.
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