Why zinc fails to evolve hydrogen gas on reacting with dilute nitric acid?
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Zinc is a reactive metal which can displace hydrogen from dilute acids. But if dilute nitric acid is used, no hydrogen gas is liberated. ... It can't be displaced from nitric acid. So even though, zinc is a reactive metal, due to the acid, hydrogen is not liberated.
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Explanation:
Zinc is a reactive metal which can displace hydrogen from dilute acids. But if dilute nitric acid is used, no hydrogen gas is liberated. Hydrogen displaces from acids like sulphuric acid and hydrochloric acid. It can't be displaced from nitric acid. So even though, zinc is a reactive metal, due to the acid, hydrogen is not liberated
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