1.Identify the gas evolved in the following reactions when :
i) Sodium propionate is heated with soda lime.
II) potassium sulphite is treated with concentrated nitric acid.
iii) Sulphur is treated with concentrated nitric acid.
iv) a few crystals of KNO3 are heated in a hard glass test tube.
v) concentrated hydrochloric acid is made to react with manganese dioxide.
1. When sodium propionate is heated with soda lime ethane gas is produced.
2. Hydrogen sulfide gas is produced when potassium sulfite is treated with nitric acid.
3. Nitric oxide is evolved when sulphur is treated with nitric acid.
4. Oxygen is evolved when potassium nitrate is heated.
5. Chlorine is released when hydrochloric acid reacts with manganese dioxide.