Nitrogen can be obtained from air by the removal of oxygen, carbon dioxide and water vapour. As water flows into the aspirator bottle, it displaces the air in it into a second flask containing sodium hydroxide solution.
Concentrated sulphuric acid and anhydrous calcium chloride are not suitable drying agents for ammonia because:
The electronic configuration of nitrogen is:
If a glass rod is dipped into concentrated hydrochloric acid and then lower it into the gas jar of the unknown gas and dense white fumes are observed, then the unknown gas is:
The suitable pressure and temperature range for the contact process is:
