Sample of gases in Boiling tube or Gas jar :
HazCard :
Ammonia gas NH3
Carbone dioxide gas CO2
Chlorine gas Cl2
Hydrogen gas H2
Oxygen Gas O2
Sulphur dioxide gas SO2
Potassium permanganate solution KMnO4
Limewater for the CO2
Ammonium carbonate (To smell)
Litmus paper