What happens when magnesium and mangenese react with dilute HNO3.explain with reaction. Pls fast
Answers
Answered by
1
Metals do react with nitric acid. However, hydrogen gas is not evolved when a metal reacts with nitric acid. This is because nitric acid 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). But magnesium (Mg) and manganese (Mn) react with very dilute HNO3 to evolve H2 gas.
When nitric acid reacts with Mg or Mn it produces hydrogen gas
Mg + HNO3 -------> Mg (NO3)2 + H2
From the reaction we can see that, loss of electron takes place which implies that HNO3OXIDISES Mg. Mg is are reducing agent , hence hydrogen is reduced due to reducing nature of Mg .
Mg and Mn are highly reactive metals, they are able to displace hydrogen from the nitric acid, however, less reactive metals do not displace hydrogen gas but get oxidized due to strong oxidising nature of nitric acid.
When nitric acid reacts with Mg or Mn it produces hydrogen gas
Mg + HNO3 -------> Mg (NO3)2 + H2
From the reaction we can see that, loss of electron takes place which implies that HNO3OXIDISES Mg. Mg is are reducing agent , hence hydrogen is reduced due to reducing nature of Mg .
Mg and Mn are highly reactive metals, they are able to displace hydrogen from the nitric acid, however, less reactive metals do not displace hydrogen gas but get oxidized due to strong oxidising nature of nitric acid.
jattaa:
Thanks bro
Similar questions