Which of the following gas is formed when copper reacts with a hot dilute nitric acid?
N2O
N2O5
NO2
NO
Copper reacts with hot dilute nitric acid to form copper(II) nitrate, water and nitrogen dioxide gas.
Cu+4HNO3→Cu(NO3)2+2H2O+2NO2
Which of the following gas is formed when potassium sulphite reacts with dilute nitric acid?
Which of the following gas is formed when very dilute nitric acid reacts with magnesium at room temperature?