question_answer

Abhi covered a leaf of a potted plant and kept the plant under sunlight for a few days and then tested it with iodine solution for the presence of starch in it. The colour of the covered leaf did not turn blue-black. What does this indicate?

A)  The black cover absorbed all the starch present in the leaf.

B)  Iodine solution does not work with black covers.

C)  Starch is evaporated from the leaves.

D)  Starch is prepared only in the presence of sun light.