Question

How will you test the presence of starch in a leaf????

Answer 1

The presence of starch in leaves can be tested by an iodine test. Then we remove chlorophyll from the leaf by boiling it in alcohol. After that, add a few (or just 2) drops of iodine solution. If the colour changes blue-black, it contains starch.

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Answer 2

Answer:

1. The presence of starch can be tested by the use of iodine solution. First of all we have to remove Chlorophyll from the leaf by boiling it in alcohol. Then dip the leaf in a dilute solution of iodine for a few minutes. if the color of iodine changes into blue black then we can say that the leaf contains starch