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(D) The 'Half-leaf experiment' is famously known as 'Moll's half-leaf experiment'.In this experiment,a part of a leaf is enclosed in a test tube conta

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Both $A$ and $C$.

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(D) The 'Half-leaf experiment' is famously known as 'Moll's half-leaf experiment'.In this experiment,a part of a leaf is enclosed in a test tube containing $KOH$ soaked cotton (which absorbs $CO_2$),while the other half is exposed to air.After some time,the leaf is tested for starch using iodine solution.The part exposed to air turns blue-black (indicating starch presence),while the part inside the tube does not.This proves that $CO_2$ is essential for photosynthesis.Therefore,both option $A$ and option $C$ refer to the same correct scientific experiment.

Select the correct option regarding the experiments on photosynthesis.

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