Question

which of the food samples will give blue black colour on adding iodine​

Answer 1

Answer:X is one of the important components of food. Wheat, pearl millet and sweet potato are rich sources of X, X gives a blue-black colour with a dilute solution of iodine.

Answer 2

Answer:

Bread and potato contains starch which gives Blue-Black colour on addition on adding iodine. If you like my answer than mark me as brainlist.