Properties of dinitrogen

PROPERTIES OF DINITROGEN

1. N₂is colourless,odourless,tasteless gas

2. N₂is not poisonous in nature but animals do not survive in its atmosphere due to absence of oxygen

3. N₂ is either combustible nor supporter of combustion.

4. N₂ is chemically nor supporter of combustion.

3000'C

5. N₂+ O₂

2NO (rxn. is used in birkland- eyde electric arc process for manufacture of HNO₂)

Fe(MO) 400 - 500'C, 200-ATM

6. N₂ + 3H₂

2NH₃(Haber _Bosch process for manufacture of HNO₂)

7. N₂ combines with metals at high temperature to form nitrides.

a) Among alkali metals Li directly combines with N₂ to form Li₃N.

b) 3Mg + N₂

Mg₃N₂

c) 2Al + N₂

2AlN

8. N₂ combines with non - metals like B,Si at red heat to form BN(Inorganic graphite) and Si₃N₄

9. N₂ + 3Cl₂ 2NCl₃(explosive).

HIGH TEMP.,HIGH PRESSURE

10. CaC₂ + N₂ [CaCN₂+ C](nitrolium)

ELECTRIC SPARK

11. CH_=CH + N₂

2HCN