Some Gases
Class 9: science
Hydrogen Gas, Laboratory Preparation of Hydrogen, Testing of Hydrogen Gas, Physical and Chemical Properties of Hydrogen Gas, Uses of Hydrogen Gas, Nitrogen Gas, Lab Preparation of Nitrogen Gas, Testing of Nitrogen Gas, Physical and Chemical Properties of Nitrogen Gas, Uses of Nitrogen Gas, Oxygen Gas, Lab Preparation of Oxygen Gas, Testing of Oxygen Gas, Physical and Chemical Properties of Oxygen Gas, Uses of Oxygen Gas, Ozone Gas, Importance of Ozone Layer, Depletion of Ozone Layer, Effects of Ozone Layer Depletion, Ways to Protect Ozone Layer
Laboratory Preparation of Hydrogen
Hydrogen gas is produced when Zinc, Magnesium, or other active metals are treated with dilute Sulfuric acid.
Testing of Hydrogen Gas
When a burning matchstick is placed over the mouth of the gas jar containing Hydrogen gas, it immediately extinguishes with a pop sound.
Laboratory Preparation of Nitrogen Gas
Nitrogen gas is produced when the mixture of Sodium Nitrite and Ammonium chloride in the solution state.
Testing of Nitrogen Gas
When a burning Magnesium ribbon is inserted into the gas jar containing nitrogen, it burns in nitrogen forming a yellow powder of Magnesium nitride (Mg3N2).
Laboratory Preparation of Oxygen Gas
In the laboratory, Oxygen gas can be produced through two methods. They are:
1. Using Heat
Oxygen gas is produced when Potassium chlorate (KClO3) is heated in the presence of Manganese dioxide (MnO2) as a catalyst.
2. Without Using Heat
Oxygen is produced when Hydrogen peroxide (H2O2) is decomposed in the presence of Manganese dioxide (MnO2) as a catalyst.
Testing of Oxygen Gas
When the burning matchstick is inserted into the gas jar containing Oxygen gas, the flame becomes brighter.
