Question

Br- + 2NO3-+ 2H+ = 2NO + BrO3-+ H2O

In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent.

Answer 1

Br- + 2NO3-+ 2H+ ---------------> 2NO + BrO3-+ H2O

-1        +5                                      +2          +5

element oxidized = Br

element reduced = N

Oxidizing agent = NO3-

Reducing agent = Br-

in the above reaction , Br oxidation state changes from -1 to +5 . so this is oxidized .

and N oxidation number changes from +5 to +2 . so this is reduced.

the species which is being oxidized is called reducing agent. and the species which is being reduced is called oxidizing agent