Question

For testing the presence of starch in leaves,a boiled leaf is used . Why?
please give a n answer​

Answer 1

Answer:

The hot water kills the leaf and the alcohol breaks down the chlorophyll, taking the green color out of the leaf. When you put iodine on the leaves, one of them will turn blue-black and the other will be a reddish-brown. Iodine is an indicator that turns blue-black in the presence of starch.

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Answer 2

Answer:

The boiled leaf is used because the hot water kills the leaf and in hot water the chlorophyll get out from the leaf and this kills the chlorophyll and after killing the chlorophyll we put the drops of iodine solution so we can test the presence of starch in the leaf