Question

which test helps in detecting the presence if starch in the food?

Answer 1

iodine test is done to test the presence of starch in food.
It can be done by applying iodine to the food item, if it turns blue then it indicates that the food item has starch in it.

Answer 2

When we apply iodine in any food item, and if the food item turns blue, then it means there is starch in that food. And if the colour stays brown or same, then that food item does not have starch.

Hope it helps!