Give two oxidising agents?

Why are halogens strong oxidising agents?

(i) why are halogens strong oxidising agents ? (ii) Why oxygen shows anomalous behaviour from rest of members of its family ? (iii) Ammonia acts as a good complexing agent. Explain.

Hot conc. H_2SO_4 acts as moderately strong oxidising agent. It oxidises both metals and non metals. Which of the following element is oxidised by conc. H_2SO_4 into two gaseous products?

Aryl chlorides and bromides can be easily prepared by electrophilic substitution of arenes with chlorine and bromine respectively in the presence of Lewis acid catalysts. But why does preparation of aryl iodides requires presence of an oxidising agent ?

Give the electronic concept of oxidising agent.

Give reason for the following : Mn^(3+) is a good oxidising agent.