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प्रश्न
Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.
स्पष्ट कीजिए
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उत्तर
Nitric acid is a powerful oxidising agent. So as soon as hydrogen gas is produced due to the action of nitric acid on metals, it oxidises hydrogen to form water and reduces itself to nitrogen oxides. Hence, hydrogen gas is not liberated in the reaction.
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