boojho took some grains of boiled rice im test tube 'A'and paheli took some boiled and chewed rice in test tube 'B' . Both of then poured 1-2 drops of iodine solution into the test tube and observed the colour change . What colour change the have observrd? Give reasons for your answer.

The test tube `A' contain boiled rice change colour blue-black while drooping 1-2 drop of iodine because it contain starch and iodine convert starch into blue-black where test tube `B'  contain boiled-chewed rice not change it's colour blue-black while drooping 1-2 drop of iodine because while chewing, the saliva make starch into simple sugar and iodine can't change simple sugar into blue-black so the test tube `B'  content colour doesn't change while test tube `A' content colour change into blue-black .                         HOPE YOU UNDERSTAND THANKS...........