Question

what is the role of KOH and iodine in mohls leaf experiment

Answer 1

The mohls leaf experiment was conducted to show that photosynthesis needs carbon dioxide.So KOH or potassium hydroxide was used because it absorbs co2 and iodine was used because iodine when put on a leaf turns blue black if starch is present and if not it turns brown,thus making it easy to judge the presence or absence of starch.