Question

Q.why do most reactive metal react with acids to give h2 gas except HHO3 Nitric acid .
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Answer 1

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Hydrogen gas is not evolved when a metal reacts with nitric acid. It is because HNO3 is a strong oxidising agent. It oxidises the H2 produced to water and itself gets reduced to any of the nitrogen oxides (N2O, NO, NO2).

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Answer 2

Answer:

because nitric acid is a very strong oxidising agent and it performs oxidation which means addition of oxygen and removal of hydrogen so metals doesn't release H2 with HNO3