For liberating hydrogen gas with the help of metals, concentrated nitric acid is not used. Why?
Answers
Answered by
0
The Hydrogen gas produced during its reaction with metal gets oxidised to H2O, hence no hydrogen gas is produced.
Instead it evolves nitric oxides such as NO2,NO etc.
For Eg:
Cu(s) + 4HNO3(aq)--->Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)
Instead it evolves nitric oxides such as NO2,NO etc.
For Eg:
Cu(s) + 4HNO3(aq)--->Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)
Answered by
0
because nitric acid is strong oxidising agent .As soon as hydrogen gas is formed in the reaction between a metal and nitric acid, the nitric acid oxidises this hydrogen to water and itself reduced to any of nitrogen oxides( N20, NO,NO2)
Similar questions