Question

When carrying out the starch test on a leaf, why is it important to boil the leaf in alcohol?

Answer 1

Explanation:

we boil leaf in alcohal to make leaf permiable for iodine

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Answer 2

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.

so it is important to boil the leaf in alcohol