Question

one physical and one chemical test used to identify nitrogen

Answer 1

Answer:

chemical test -

The extract is boiled with FeSO4 and acidified with concentrated H2SO4. The appearance on Prussian blue colour indicates the presence of nitrogen.

physical test-

The presence of nitrogen in the organic compound is detected by fusing organic compounds with sodium metal to give sodium cyanide (NaCN) soluble in water.

Answer 2

Answer:

Physical properties :

→ It is colourless, odourless and taseless gas.

→ Nitrogen is neither combustible nor a supporter of combustion.

Chemical properties :

→ Under suitable circumstances, nitrogen combines with other elements and produces compound

→ Nitrogen combines with oxygen and forms nitric oxide.