On boiling an aqueous solution of `KClO_(3)` with iodine, the following product is obtained

An aqueous solution of gas ‘A’ gave the following data (reactions): On boiling with H_(2)O_(2) followed by cooling and then adding an aqueous solution of BaCl_(2) , a white precipitate insoluble in dilute HCl was obtained.

On warming an aqueous solution of benzenediazonium chloride, the product obtained is

Aqueous ethanolic solution of 2-3% Iodine is

By the electrolysis of aqueous solution of CuSO_(4) , the products obtained at both the inert electrodess are: