nitrogen gas

16.03.18 (CGPCS) Chhattisgarh Current Affairs

CHHATTISGARH Rs 448.30 cr special assistance under tss in last 4 years   The Central Government has released Rs 448.30 crore to Chhattisgarh under Special Central Assistance (SCA) to Tribal Sub Scheme (TSS) during the last four years between 2014-15 to 2017-18, officials informed.   Notably, NITI Aayog has also given ‘in principle’ approval to various proposals related to roads, telecommunication, education, Ujjwala yojana and expansion of bank branches for overall development of Chhattisgarh’s Bastar region in January this year.   The Chief Secretary informed that ‘in principle’ approval has been given for construction of additional 600 km of roads ... Read more

Preparation of nitrogen

  Preparation of nitrogen Nitrogen is found in both free and combined states. It occupies 78.07% by volume. Nitrogen can be prepared: By heating copper in air: Firstly, air is passed through lime water and then concentrated sulphuric acid to make the air free from carbon dioxide and moistures respectively. The air contains only nitrogen and oxygen which are passed over the heated copper wire as shown in the figure. Here copper combines with oxygen to make copper oxide and nitrogen gas passes over. This nitrogen can be collected by downward displacement of water. By burning phosphorous in air: Nitrogen ... Read more