`O_(3)` is a powerful oxidising agent. Write equation to represent oxidation of
(a)`I^(-)` to `I_(2)` in acidic solution,
(b)sulphur to sulphuric acid in the presence of moisture,

Explanation

(a)`O_(3)+2I^(-)+2H^(+) to O_(2)+I_(2)+H_(2)O` , (b)`3O_(3)+S+H_(2)O to H_(2)SO_(4) +3O_(2)`