Oxidation-Reduction

 

  6) (a) 2N2H4(g) + N2O4(g) 3N2(g) + 4H2O(g)

 

      (b)

              -4  +4        +8  -8                              +2 -2
              -2  +1        +4  -2                     0       +1 -2

           N2H4 + N2O4 N2 + H2O

 

           N2O4 is the oxidizing agent and N2H4 is the reducing agent.