Chemistry
Why is nitric acid not used in the preparation of hydrogen?
Hydrogen
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Answer
As nitric acid is a powerful oxidizing agent, and the oxygen formed due to its decomposition oxidizes the hydrogen to give water thus defeating the purpose of the reaction. Hence, Nitric acid is not used in the preparation of hydrogen.
3Zn + 8HNO3 ⟶ 3Zn(NO3)2 + 4H2O + 2NO ↑
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