Question

write the procedure to test the presence of starch​

Answer 1

Answer:With the help of tweezers, dip each of the leaves in hot water for a minute. Now, dip the leaves in the beaker holding ethyl alcohol for 120 seconds or till they change their color to almost white. Place each of them in a shallow dish. Cover these leaves with some drops of iodine solution and observe.

Explanation:

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Answer 2

Answer:

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Explanation:

Take small quantity of the food items to be tested.

Put 2-3 drops of iodine solution on it.

Observe the colour of the food item.

Blue-black colour indicates the presence of starch in the tested food item.