1. Equal amounts of calcium 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). In which case, fizzing occurs more vigorously and why ?
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Answer:
- Fizzing will occur in both cases but it will be more vigorous in case of HCl because it is highly reactive (strong acid) .
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In the test tube (A), the action of fizzing occurs vigorously due to the presence of a highly strong acid(HCl) which is more acidic as compared to Ethanoid acid(CH₃COOH), which is a weak acid in nature. Therefore, the reaction in test tube (A), the reaction is violent as compared to(B), which is not
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