Identify the compounds which are reduced and oxidised in the following reaction:
3N2H4 + 2BrO3– 3N2+ 2Br– + 6H2O
a. N2H4 is oxidised and BrO3 – is reduced
b. BrO3– is reduced and N2H4 is oxidised
c. BrO3– is both reduced and oxidised
d. This is not a redox reaction.