Question

why is there a need to extract the chlorophyll from the leaf before testing it with iodine solution?

Answer 1

Answer:

We remove the chlorophyll from the leaf by boiling it in alcohol water bath because the green colour of the leaf hinders with the blue-black colouring test of iodine solution on the leaf. Because it allows the iodine solution to penetrate the cells and react with any starch present.

hope it helps uh ✨

Answer 2

Answer:

maybe it's just that the green colour of the chlorophyll might not give proper results. because there is a need to find the purple colour of the iodine .as by removing chlorophyll we actually remove a barrier from having a better colour of purple shade