Question

the chemical used to remove chlorophyll from the leaf in experiment
a.methylated spirit
b.KOH solution
c.iodine solution
d.acetic acid​

Answer 1

iodine solution is your answer..

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Answer 2

Answer:

To remove the chlorophyll of a leaf the ethanol is used. The iodine solution turn the leaf into blue-black color if it contains starch and into reddish- brown color if it does not contain starch.

Explanation:

• Chlorophyll is a green color pigment present in the leaves, which helps in the photosynthesis process. The green color of leaves due to the presence of chlorophyll.
• Ethanol is a organic solvent in which chlorophyll of leaf dissolved. Therefore the green color of leaf disappears in the ethanol(alcohol).
• Now, if the yellow color leaf further added into iodine solution to check the presence of starch.
• The color of leaf with starch will turn into blue-black in iodine solution. The color of the leaf without starch will turn into reddish- brown in iodine solution.