Question

what do you mean by decolourised leaf?​

Answer 1

Explanation:

Boiling it and placing it in an alcohol bath. It shows that white patches do not photosynthesize as iodine turns blue black in the presence of starch.

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Answer 2

Answer:

If the leaf has no colour like white patches by bathing it and placing it in an alcohol . it does not photosynthesized as iodine which turns into blue black with the presence of starch. It will be knowed as decolourised leaf.