Question

Why are green leaves boiled in waterand alcohol before testing it for the presence of starch?

Answer 1

Explanation:

Before doing starch test with a leaf it becomes relevant to boil the leaf in alcohol, in order to remove the chlorophyll from the green leaf. On doing this, the leaf becomes de colorized, and it is then when it is treated with iodine and blue black color so as to test the presence of starch in the leaf.

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Answer 2

Answer:

Explanation:

Before doing starch test with a leaf it becomes relevant to boil the leaf in alcohol, in order to remove the chlorophyll from the green leaf. On doing this, the leaf becomes decolorized, and it is then when it is treated with iodine and blue black color so as to test the presence of starch in the leaf.