Question

prove that H2 is evolved when acid reacts with metal​

Answer 1

Answer:

Nitric acid doesn't liberate H

2

gas, instead you get nitrogen oxides and water along with metal nitrate. This is because HNO

3

is a powerful oxidizing agent, It oxidises the hydrogen produced to water and itself gets reduced to oxides of nitrogen such as NO,NO

However dilute nitric acid reacts with Magnesium and manganese to liberate H 2

Mg+HNO 3 →Mg(NO 3) 2 +H 2

Answer 2

Answer:

Purple you forever and ever my cool friend;)

Good morning ^_^