[" 5) 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

When aqueous solution of benzene diazonium chloride is boiled, the product formed is

When aqueous solution of benzene diazonium chloride is boiled, the product formed is:

By the electrolysis of an aqueous solution of CuSO_(4) the products obtained at both the electrodes are