elements

20.02.18 (CGPCS) Chhattisgarh Current Affairs

by

CHHATTISGARH C’garh rice varieties could help fight cancer   Scientists have claimed to have detected anti-cancer properties in three traditional varieties of rice found in Chhattisgarh.     A research has concluded that three medicinal varieties of rice – Gathwan, Maharaji and Laicha – have the ability to fight cancer, said scientist Deepak Sharma.   … Read more 20.02.18 (CGPCS) Chhattisgarh Current Affairs

Preparation of nitrogen

by

  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 … Read more Preparation of nitrogen