Will apple’s colour change or will potato change its colour?

Описание: Many different food groups contain a carbohydrate known as starch. Using an iodine solution, you can test for the presence of starch. When starch is present, the iodine changes from brown to blue-black or purple.

Let's test which one of these(potato or apple) have more starch!

You need a sliced Potato, a sliced Apple and some iodine solution. Apply the solution onto the potato and apple and wait for some time.
After some time, you will notice that the potato has turned black due to the presence of starch in it and since the apple has 'almost' no starch and doesn't turn black.


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