Question

Nitric acid can not be used to prepare hydrogen gas by its action on active metal

Answer 1

Answer:

Nitric Acid is a very strong oxidising agent. It oxidizes the Dihydrogen Gas produced during the reaction with metals to Water. That is why, Nitric Acid cannot be used for preparation of hydrogen gas. However, metals like Magnesium and Manganese still produce Hydrogen Gas but with very dilute nitric acid.

Answer 2

Answer:

Nitric Acid is a very strong oxidising agent. It oxidizes the Dihydrogen Gas produced during the reaction with metals to Water. That is why, Nitric Acid cannot be used for preparation of hydrogen gas. However, metals like Magnesium and Manganese still produce Hydrogen Gas but with very dilute nitric acid