Give reasons:
Hydrogen gas is not evolved when a aluminium metal reacts with nitric acid.

AcademicChemistryNCERTClass 10

Hydrogen gas is not evolved when a metal (Aluminium) reacts with nitric acid because nitric acid is a strong oxidizing agent. Hence, it oxidizes the hydrogen to produce water.
Nitric acid (HNO3) reduces itself to any of the nitrogen oxides (N2O, NO, NO2) after oxidizing the H2 to water.



[Exception: Magnesium (Mg) and manganese (Mn) react with very dilute HNO3 to produce H2 gas.]
raja
Updated on 10-Oct-2022 13:23:31

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