Question

experiment to show that chlorophyll is necessary for photosynthesis and what was the result​

Answer 1

Explanation:

In the presence of starch iodine solution will turn into blue-black color and in the absence of starch iodine added to leaf will turn into brown color. ... So iodine added in this region will change into brown color. Thus this experiment proves chlorophyll is necessary for leaves to prepare starch through photosynthesis.