Question

Which chemical is used to test presence of starch in the food given sample

Answer 1

iodine solution

Here we have taken a potato sample and dilute iodine solution. Test the food item with a few drops of iodine solution on the food sample and observe. We can see that the part of food with iodine solution turns to a blue-black color. A blue-black color indicates the presence of starch.

─────────────────────────