| Robin performs an experiment to show that carbon dioxide is necessary for photosynthesis. |
| Step 1: He takes a destarched potted plant and a conical flask and put some potassium hydroxide into it. Now, he inserts one leaf from the plant into this conical flask through a split cork and leave the plant in sunlight for few hours. |
| Step 2: He compares another leaf of the same plant that was exposed to atmospheric air with leaf from the conical flask. |
| What does he notice? |
A) Leaf from the conical flask does not turn blue black while the one that was exposed to atmospheric air turns blue black.
B) Leaf from the conical flask turns blue black while the one that was exposed to atmospheric air does not turn blue black.
C) Both the leaves of the same plant will turn blue black.
D) All of these
E) None of these
Correct Answer: A
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