sulfuric acid which has strong oxidation effect and thus converting bromine ( ) into bromine element and release reddish-brown gas. this method can be used to identify sodium iodide (heating sodium iodide and concentrated sulfuric acid together will release red-purple gases), thereby, we can only take...
electrolytic process. the electrolytic process the process has four stages: a) concentration of the ore b) roasting of the ore in air c) conversion of zinc oxide to zinc sulfate d) electrolysis of zinc sulfate solution (a) concentration of the ore the ore is mined, crushed, ball-milled and then concentrated...