hi experts , pls ans , As "Hydrogen" is above "copper" in reactivity serioes so copper cannot displace it and form its salt ( eg:- no reaction takes place between copper and hydrogen as copper is less reactive than hydrogen so cannot displace it ) , Then pls tell wy copper being less reactive displaces hydrogen in case of HNO3 , if it cannot react with HCl ,how is it able to react with HNO3
Dear student,
Copper does not displace hydrogen of HNO3. The reaction occurs between copper and nitric acid is because nitric acid is a strong oxidizing agent. And the reaction is not the usual reaction where acid and metal react and more reactive metals than hydrogen displace the hydrogen, in those reactions hydrogen gas is released but here, no hydrogen gas is released which means copper does not displace hydrogen.
In the presence of concentrated nitric acid which is a strong oxidizing agent higher oxidation state of nitrogen (IV) oxide is formed.
Regards
Copper does not displace hydrogen of HNO3. The reaction occurs between copper and nitric acid is because nitric acid is a strong oxidizing agent. And the reaction is not the usual reaction where acid and metal react and more reactive metals than hydrogen displace the hydrogen, in those reactions hydrogen gas is released but here, no hydrogen gas is released which means copper does not displace hydrogen.
In the presence of concentrated nitric acid which is a strong oxidizing agent higher oxidation state of nitrogen (IV) oxide is formed.
Regards