Question

describe in brief the hydrides of nitrogen

Answer 1

NH3, N2H4, N2H2 NH3 only thermally stable hydride.  Prepared industrially by the Haber process (500 oC, high pressure),naturally by nitrogen fixation.   Uses of Ammonia  4NH3 + 5O4NO + 4H2O (Huge scale) NH3 + NaOCl NH2Cl + NaOH  Chloramine NH3 + NH2Cl N2H4 + NaCl + H2O (Raschig process)  Side reaction 2NH2Cl + N2H4 N2 + NH4Cl  catalysed by traces (ppm) of metal ions, add gelatin.  Structure Acid/Base properties  NH3 basic N2H4, weakly basic  NH4+ N2H5+, N2H62+  Redox properties  Both NH3 and N2H4 mild reducing agent (ox states -3 and -2).  Reactions complex in aq solution  Summary of reactivity 

Answer 2

Nitrogen Hydrides

 NH3, N2H4, N2H2 NH3 only thermally stable hydride.  Prepared industrially by the Haber process (500 oC, high pressure),naturally by nitrogen fixation.


Acid/basic properties
  NH3 basic N2H4, weakly basic  NH4+ N2H5+, N2H62+  

Redox properties
  Both NH3 and N2H4 mild reducing agent (ox states -3 and -2).  Reactions complex in aq solution