why is alcohol removed before performing iodine test by putting the leaf in water
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iodine solution is used to test leaves for the presence of starch. You need to add the leaf to boiling alcoho(C2H5OH) for a few minutes (the boiling ethanol(C2H5OH)dissolves the chlorophyll and removes the green colour from the leaf - it turns white so it is easy to see the change in colour
ranjitsingh020pbuo8j:
i have asked why it is washed with water before performing iodine test??....
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this removes most of its colour.
In order to see the changes brought about by the iodine test , we have to remove the green colour. The green colour is given by the chlorophyll when we wash the leaf with alcohol ,we are actually removing chlorophyll . then only we will be able to observe that changes during iodine test
Which is the watch the leaves to remove the dust particles and
Sorry
We wash the leaves to remove dust particles
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