Question

Write down food items which will turn blue black when iodine solution is added.

Answer 1

1. Iodine is a common indicator to test for the presence of starch.
2. The light orange-brown color Iodine solution turns blue-black in color when it reacts with starch.
3. This indicates the presence of carbohydrates in the food item to which iodine solution was added.Some of the food items are-

1) Cornmeal
2) Flour
3) Oats
4) Breads
5) Rice
6) Pasta
7) Potatoes
8) Pumpkins
9) Pineapple
10) Grapes
11)Melons