Question

zn gives hydrogen gas with sulphuric acid and hydrochrolic acid but not with nitris acid because​

Answer 1

Answer:

as it is an oxidising agent and it oxidises oxygen to form water

Answer 2

$\mathfrak{\huge{\green{\underline{\underline{Answer :}}}}}$

Nitric acid is a very strong oxidising agent and hence it leads to the addition of oxygen to another substance. Thus when hydrogen is formed due to addition of nitric acid on zinc metal it oxidises hydrogen to water and thus the reaction becomes,

Zn + 4HNO3 → Zn(NO3)2 + 2NO2 + 2H2O

Hope It Will Help.❤