food item which do not produce colour with copper sulphate and caustic soda solution do not contain protein

food item which do not produce colour with copper sulphate and caustic

1.	food item which do not produce colour with copper sulphate and caustic soda solution do not contain protein
Answer» this is because the protein reacts EASILY with copper sulphate and CAUSTIC soda.item WITHOUT colour do not contain protein and hence does not REACT with copper sulphate and caustic soda.Explanation:hope it helps ....:)