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Q. Why Hydrogen gas is not evolved when most of the metals react with nitric acid?
Dear Student
Hydrogen produced during the reaction of metal with nitric acid is oxidized to water due to the strong oxidizing power of HNO3 and instead of hydrogen, nitric oxides (NO or NO2 or N2O) are evolved.
Example:
Hydrogen produced during the reaction of metal with nitric acid is oxidized to water due to the strong oxidizing power of HNO3 and instead of hydrogen, nitric oxides (NO or NO2 or N2O) are evolved.
Example: